Taxonomical Aids Questions in English

(B) herbarium sheet is a standard size sheet ($29 \times 41.5 \text{ cm}$ or $11.5 \times 16.5 \text{ inches}$) used for storing dried and pressed plant specimens.
To provide information about the specimen, a label is pasted on the herbarium sheet.
This label is typically placed at the bottom right corner of the sheet.
The label contains information such as the date and place of collection, English, local and botanical names, family, and the name of the collector.

(D) The preparation of plant specimens for a herbarium involves a systematic process.
$1$. $Collection$: The plant material is collected from the field.
$2$. $Pressing$: The collected specimens are pressed between sheets of paper to flatten them.
$3$. $Drying$: The specimens are dried to remove moisture and prevent decay.
Since all these steps are essential parts of preparing a plant specimen, the correct answer is $D$.

(C) Botanical gardens are specialized gardens that have collections of living plants for reference. Plant species in these gardens are grown for identification purposes and each plant is labelled indicating its botanical/scientific name and its family.
Herbariums are storehouses of collected plant specimens that are dried,pressed,and preserved on sheets. These sheets are arranged according to a universally accepted system of classification.
Both botanical gardens and herbariums serve as essential taxonomical aids that provide facilities for botanical research,identification,and study of plant diversity.

(C) The process of preserving dried plant specimens in a herbarium involves several steps.
$1$. Drying: Plants are pressed and dried between sheets of paper.
$2$. Poisoning: To prevent fungal growth and insect attacks,the dried specimens are treated with chemicals like $HgCl_2$ (mercuric chloride). This process is known as poisoning.
$3$. Mounting: The specimens are then mounted on herbarium sheets.
Therefore,the correct term for applying chemicals to preserve specimens is poisoning.

(C) In the process of herbarium preparation,plant specimens are collected,dried,and pressed. To protect these dried specimens from fungal attacks and insect damage,they are treated with chemicals like mercuric chloride $(HgCl_2)$. This process is known as poisoning. Fumigation is a method used to control pests in storage,but poisoning is the specific term used for treating herbarium sheets to prevent biological decay.

(B) The Central National Herbarium is one of the largest and most significant herbaria in India. It is located at the Indian Botanic Garden in Shibpur,Kolkata. It houses a vast collection of dried plant specimens used for taxonomic research and identification.

(A) $Herbarium$ is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These sheets are arranged according to a universally accepted system of classification.
These specimens,along with their descriptions on herbarium sheets,become a storehouse or repository for future use.

(D) Assertion $A$ is false because herbaria are storehouses of collected plant specimens that are dried,pressed,and preserved on sheets. They serve as quick referral systems in taxonomic studies,but they do not provide the 'keys' for preparing modern taxonomic systems; keys are separate analytical devices based on contrasting characters.
Reason $R$ is true because herbaria provide essential facilities for taxonomic research by allowing scientists to study plant morphology,distribution,and nomenclature using preserved specimens.
Therefore,$A$ is false and $R$ is true.

(B) The 'Herbarium Department of Botany' is a well-known botanical collection located at the Maharaja Sayajirao University of Baroda in Vadodara,Gujarat. It serves as a significant repository for plant specimens in the region.

(D) The preparation of plant specimens for a herbarium involves several systematic steps:
$1$. Poisoning: The dried plant specimen is treated with chemicals (like mercuric chloride) to prevent fungal and insect attacks.
$2$. Mounting: The dried and poisoned specimen is carefully fixed onto a herbarium sheet using glue or adhesive tape.
$3$. Labeling: $A$ label is attached to the herbarium sheet,which includes information such as the date and place of collection,English and local names,family,and the name of the collector.
Since all these steps are essential parts of herbarium specimen preparation,the correct answer is $D$.

(B) herbarium is a collection of dried,pressed,and preserved plant specimens mounted on sheets of paper.
These sheets are known as herbarium sheets.
The standard size of a herbarium sheet is $29 \ cm \times 41 \ cm$ (or $11.5 \ inches \times 16.5 \ inches$).
Therefore,the correct option is $B$.

(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These herbarium sheets are labeled with information about the date and place of collection,English,local and botanical names,family,and the name of the collector.
Therefore,all the given options are correct as they are standard entries on a herbarium label.

(B) $Herbarium$ is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets. These sheets are arranged according to a universally accepted system of classification. These specimens,along with their descriptions on herbarium sheets,become a storehouse or repository for future use in taxonomic studies.

(C) $Herbarium$ is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These sheets are arranged according to a universally accepted system of classification.
These specimens,along with their descriptions on herbarium sheets,become a storehouse or repository for future use.

(D) herbarium is a collection of dried,pressed,and preserved plant specimens mounted on sheets of paper. To ensure the long-term preservation and stability of these specimens on the herbarium sheet,they are typically attached using either stitching with thread or by applying adhesive tape (cello tape). This prevents the specimen from falling off or getting damaged during handling and storage. Therefore,both methods are standard practices in herbarium preparation.

(D) Botanical gardens are specialized gardens that hold collections of living plants for reference.
These gardens provide various types of information:
$1$. Ecological: By observing plants in their near-natural habitat,we understand their environmental requirements.
$2$. Economic: Many botanical gardens display plants of medicinal,timber,or food value,providing economic data.
$3$. Ethnobotanical: They preserve plants used by indigenous cultures,offering insights into traditional plant usage.
Therefore,all these types of information can be obtained from a botanical garden.

(B) $Herbarium$ is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets. Further,these sheets are arranged according to a universally accepted system of classification. Along with the specimens,the $Herbarium$ also serves as a repository for botanical literature,including floras,manuals,monographs,and catalogues,which act as quick referral systems in taxonomical studies.

(C) The correct sequence for the preparation of a herbarium specimen is as follows:
$1$. Collection: Gathering the plant material from the field.
$2$. Pressing: Placing the specimen between blotting papers to flatten it.
$3$. Drying: Removing moisture from the specimen to prevent decay.
$4$. Poisoning: Treating the specimen with chemicals (like $HgCl_2$) to prevent fungal or insect attacks.
$5$. Mounting: Fixing the dried specimen on a herbarium sheet.
$6$. Labeling and Storing.
Therefore,the correct sequence among the given options is Collection,Pressing,Drying,Poisoning.

(B) The Natural History Museum,often referred to in the context of biological taxonomy and historical collections,is located in London,England. It is one of the most famous museums in the world for natural history specimens.

(A) The Royal Botanic Gardens,Kew,is a world-famous botanical garden located in Kew,southwest London,England.
It is a major center for botanical research and education,housing one of the largest and most diverse botanical and mycological collections in the world.
Therefore,the correct option is $A$.

(B) The Forest Research Institute $(FRI)$ is a premier institution in the field of forestry research in India. It is located in Dehradun,Uttarakhand. The herbarium associated with this institute is one of the most significant herbaria in the country,housing a vast collection of plant specimens. Therefore,the correct option is $B$.

(A) Botanical gardens are specialized gardens that have collections of living plants for reference. Plant species in these gardens are grown for identification purposes and each plant is labeled indicating its botanical/scientific name and its family. These gardens provide extensive information for the study and establishment of modern plant classification systems.

(B) In a herbarium,plant specimens are dried,pressed,and preserved on sheets. To protect these dried specimens from the attack of fungi,insects,and moisture,$Naphthalene$ balls or $Mercuric$ $Chloride$ $(HgCl_2)$ are commonly used. $Naphthalene$ acts as a repellent against insects and pests,while the preservation process ensures the specimens remain intact for long-term study. Therefore,the correct option is $B$.

(C) $I.$ Correct: Herbarium specimens are prepared by pressing and drying plants on sheets.
$II.$ Correct: The label on the herbarium sheet (typically at the bottom right) records the date,place of collection,English/local/botanical names,family,and collector's name.
$III.$ Incorrect: Botanical gardens contain living plants for reference. Museums or herbaria contain preserved specimens,illustrations,and slides.
$IV.$ Correct: Botanical gardens are specialized gardens having collections of living plants for reference.

(D) Herbaria serve as a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These specimens,along with descriptions on herbarium sheets,provide information about:
$1$. Identification of collected plant specimens.
$2$. Identification of newly discovered plant specimens.
$3$. Providing material for taxonomic research.
Therefore,all the given options are correct.

(A) In the process of preparing a herbarium,plant specimens are pressed and dried to remove moisture. Blotting paper or newspaper is commonly used for this purpose because it effectively absorbs moisture from the plant tissues,preventing decay and ensuring the specimen is preserved properly.

(C) herbarium sheet is a dried and pressed plant specimen mounted on a sheet of paper.
To provide scientific utility,a label is attached to the herbarium sheet.
The information recorded on this label typically includes:
$1$. Date and place of collection.
$2$. English,local,and botanical names.
$3$. Family of the plant.
$4$. Name of the collector.
Among the given options,the date of collection and the place of collection are standard entries. However,in standard multiple-choice questions of this type,if only one must be chosen,'Date of collection' is a primary piece of information recorded on the label.

(A) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
To protect these specimens from fungal growth,insects,and pests,they are treated with chemicals like mercuric chloride (poisoning) and fumigated.
Therefore,Assertion $A$ is true because preservation is the primary purpose of a herbarium,and Reason $R$ is true because it explains the specific methods used to ensure that protection.
Thus,$R$ is the correct explanation of $A$.

(C) The preparation of a herbarium involves a systematic process to preserve plant specimens for future study.
$1$. $Collection$: The first step is to collect healthy plant specimens.
$2$. $Pressing$: The specimens are placed between sheets of blotting paper or newspaper to flatten them.
$3$. $Drying$: The specimens are dried to remove moisture,which prevents fungal growth.
$4$. $Poisoning$: The dried specimens are treated with chemicals like $HgCl_2$ (mercuric chloride) to protect them from insect attacks.
$5$. $Mounting$: Finally,the specimens are mounted on herbarium sheets.
Therefore,the correct sequence is $Collection, Pressing, Drying, Poisoning$.

(D) The 'Museum of Natural History' (specifically the Natural History Museum) is a world-renowned institution located in London,Britain. It houses a vast collection of specimens from various segments of natural history.

(A) In a herbarium,plant specimens are collected,dried,pressed,and mounted on herbarium sheets. To protect these dried specimens from fungal attacks and insect damage,a process called fumigation is performed. Fumigation involves exposing the specimens to chemical vapors (like $HgCl_2$ or $CS_2$) to ensure long-term preservation.

(C) The Great Banyan Tree is a massive banyan tree $(Ficus \text{ benghalensis})$ located in the Indian Botanical Garden, Shibpur, Kolkata, India. It is famous for its enormous size and is one of the largest trees in the world.

(B) Sakkarbaug Zoological Park,located in Junagadh,Gujarat,is one of the oldest zoological parks in India. It is well-known for its breeding program for Asiatic lions.

(B) Botanical gardens are specialized gardens having collections of living plants for reference. They are typically associated with educational and research institutions to facilitate the study of plant taxonomy and conservation. Zoological parks,on the other hand,are places where wild animals are kept in protected environments under human care. Therefore,botanical gardens are not associated with zoological parks.

(C) Botanical gardens are specialized gardens that hold collections of living plants for reference. These gardens are primarily established for research,conservation,and educational purposes. Therefore,they are typically associated with universities,research centers,or other educational institutions to facilitate the study of plant taxonomy and biodiversity.

(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These herbarium sheets are arranged according to a universally accepted system of classification.
Herbaria serve as quick referral systems in taxonomic studies.
They are commonly found in botanical gardens,educational institutions (like colleges and universities),and research institutions,as they provide essential reference material for plant identification and research.

(B) The process of preparing a herbarium specimen involves several steps: $1$. Collection,$2$. Drying,$3$. Poisoning (using $HgCl_2$ to prevent fungal or insect attack),$4$. Mounting (fixing the specimen on a herbarium sheet),and $5$. Labeling. Therefore,mounting is the step that follows poisoning.

(A) The process of preparing a herbarium involves several steps:
$1$. $Collection$: Gathering the plant specimens.
$2$. $Pressing$: The specimens are placed between sheets of blotting paper or newspaper and pressed to remove moisture and flatten them. This is done before the drying process.
$3$. $Drying$: The specimens are dried to remove remaining moisture.
$4$. $Poisoning$: Treating with chemicals like $HgCl_2$ to prevent fungal or insect attacks.
$5$. $Mounting$: Fixing the dried specimens onto herbarium sheets.
Therefore, $Pressing$ is the method used before drying.

(C) The process of preparing a herbarium involves several sequential steps:
$1$. $Collection$: The first step is to collect the plant specimen from the field.
$2$. $Drying$: The collected specimens are dried by pressing them between sheets of paper.
$3$. $Pressing$: This is done to flatten the specimen.
$4$. $Poisoning$: Treating with chemicals to prevent fungal growth.
$5$. $Mounting$: Fixing the specimen on a herbarium sheet.
$6$. $Labeling$: Providing information about the specimen.
Therefore, the very first step is $Collection$.

(C) The process of preparing a herbarium sheet involves several steps:
$1$. Collection of the plant specimen.
$2$. Drying (pressing) to remove moisture.
$3$. Poisoning to prevent fungal or insect attack.
$4$. Mounting the specimen on a herbarium sheet.
$5$. Labeling,which provides information about the date,place of collection,English,local and botanical names,family,and the collector's name.
Labeling is the final step in the preparation of a herbarium sheet.

(B) The standard procedure for preparing a herbarium specimen involves several steps:
$1$. Collection of the plant material.
$2$. Drying (also known as pressing) of the specimen.
$3$. Poisoning (treatment with chemicals like mercuric chloride to prevent fungal or insect attack).
$4$. Mounting on a herbarium sheet.
$5$. Labeling.
Since the question asks for the process performed after collection and before pressing (which is part of the drying process),the correct sequence is often interpreted as the preparation for drying. However,in the context of standard herbarium techniques,'Drying' is the process that follows collection and precedes the final mounting and labeling.

(B) In the preparation of herbarium sheets, the process of spraying a specific chemical (such as $0.1\%$ mercuric chloride) on pressed and dried plant specimens is known as $Poisoning$. This step is crucial to protect the specimens from fungal attacks and insect damage, ensuring their long-term preservation.

(C) In herbarium techniques,'poisoning' is the process of treating plant specimens with chemical substances to protect them from biological degradation.
Specimens are typically treated with a solution of $HgCl_2$ (mercuric chloride) or other fungicides and insecticides.
The primary purpose of this process is to prevent damage caused by fungi,insects,and moisture,ensuring the long-term preservation of the herbarium sheets.

(B) $Herbarium$ is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These sheets are arranged according to a universally accepted system of classification.
These specimens,along with their descriptions on the $Herbarium$ sheet,become a storehouse or repository for future use.
The standard size of a $Herbarium$ sheet is $29 \ cm \times 41 \ cm$ (or $11.5 \ inches \times 16.5 \ inches$).

(D) herbarium is a collection of dried,pressed,and preserved plant specimens mounted on sheets.
To ensure the specimen remains securely attached to the herbarium sheet,it is either stitched using thread or fixed using cellophane tape.
Therefore,both methods are standard practices for mounting specimens.

(C) herbarium sheet is a dried and pressed plant specimen mounted on a sheet of paper. The label on the herbarium sheet provides essential information for identification and research. The standard information included on the label is:
$1$. Date and place of collection.
$2$. English,local,and botanical (scientific) names.
$3$. Family of the plant.
$4$. Collector's name.
In standard herbarium practice,the label is typically placed at the lower right-hand corner. The information provided on the label includes the scientific name,local name,family,date of collection,and place of collection. 'Place of collection' (or 'Date of collection') is standard information,but 'Origin' (in the sense of geographical origin or native range) is not a standard field on the label.

(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
To ensure the long-term preservation of these specimens,they must be protected from biological agents like fungi and insects,as well as environmental factors like moisture.
$1$. Naphthalene balls are commonly used as a repellent to keep insects away from the dried specimens.
$2$. Fumigation is a process of using chemical fumes to disinfect the herbarium cabinets and specimens,effectively killing fungi and insects.
Therefore,both $(A)$ and $(B)$ are standard practices in herbarium maintenance.

(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.
These specimens are susceptible to damage by insects and fungal growth over time.
Fumigation is a chemical treatment process using gases to eliminate pests,insects,and fungal spores,thereby ensuring the long-term preservation of the plant specimens.
Therefore,it is done for protection against both insects and fungi.

(B) Botanical museums (or herbaria) are primarily focused on the preservation and study of plant specimens.
Common items found in these museums include dried plant specimens,drawings,photographs,slides,and botanical literature.
Zoological books,however,pertain to the study of animals and are typically found in zoological museums or general libraries,not in botanical museums.
Therefore,$B$ is the correct answer.

(D) Herbaria are storehouses of collected plant specimens that are dried,pressed,and preserved on sheets.
These sheets are arranged according to a universally accepted system of classification.
Along with the plant specimens,herbaria often include documentary evidence,maps,and sometimes paintings or illustrations of the plants for reference.
Insect boxes are part of zoological museums or entomological collections,not herbaria,as herbaria are specifically dedicated to plant specimens.