Question

Anomocytic type of stomata are found in the leaves of

• A. Fox glove
• B. Atropabelladona
• C. Urgeniaindica
• D. Cassia acutifolia

Hint:

Cassia acutifolia (senna) is a good example of a plant with anomocytic stomata.

Answer 1

The Correct Option is D

In pharmacognosy, each stomatal type is linked to a standard textbook example: foxglove and belladonna are both classic anisocytic examples, and Urginea (squill), being a monocot, shows a diacytic/paracytic pattern. The anomocytic type, where subsidiary cells around the guard cells are irregular in number and not clearly different from ordinary epidermal cells, is the pattern classically illustrated using Cassia acutifolia (senna) leaf. So the answer is Cassia acutifolia.

Answer 2

We can also work this out from the definition of the anomocytic pattern itself and check which plant's epidermis actually fits that description.

1. Fox glove: Shows a regular, defined set of three unequal subsidiary cells around each guard cell pair - a defined pattern, which is exactly what anomocytic stomata are not.
2. Atropa belladonna: Also shows this same regular anisocytic arrangement rather than an irregular one.
3. Urginea indica: Its parallel-veined monocot leaf epidermis is typically associated with a diacytic pattern (subsidiary cells forming a distinct pair with walls at right angles to the guard cells), again a defined, not irregular, pattern.
4. Cassia acutifolia: Its epidermis shows guard cells surrounded by cells indistinguishable in shape and size from the rest of the epidermal cells, with no fixed number or arrangement, precisely matching the definition of “anomocytic” (meaning “without a distinctive pattern”).

Only senna's epidermis fits the “irregular, indistinct” description that defines the anomocytic type.

Therefore, the correct answer is Cassia acutifolia.