Module 1 - Botany 101 Flashcards
What is a compound-palamate leaf?
Several leaflets make up a leaf radiating from a central point.
What are linear and lanceolate leaves?
Linear leaves are long and thin; lanceolate leaves are wider in the middle
How many leaves do cannabis leaves typically have?
1 - 11
What are unicellular trichomes?
Resemble small, simple hair; 50 microns long; appear early in the plants life; appear on the undersides of the leaves; non-resinous
What are trichomes?
Tiny structures that protrude from leaves, stems, stalks and bracts; cannabis has 6 types of trichomes: 3 resinous, 3 non-resinous
What are cystolithic trichomes?
Trichomes that contain cysolith (tiny mass of calcium carbonate) at the base of the stalk; 150-220 microns long; non-resinous
What are 3 forms of glandular trichomes?
bulbous, capitate-sessile, capitate-stalked; all are resinous
What are bulbous trichomes?
short stalks; small glandular head (10-20 microns; appear prior to flowering; small amounts of resin
What are capitate-sessile trichomes?
no stalk, glandular head measures 20-40 microns; have just a single cell connecting them to the epidermis
What are capitate-stalked trichomes?
resemble mushroom head on a stalk; this is where the bulk of the cannabinoids and trichomes are produced; largest of all trichomes @ 135 microns w/ 40 micron width stalk; most heavily concentrated on the bracts; begin to appear just before flowering and increase in size until maturity
What are dioecious flowers?
flowers that produce distinct male and female flowers
What do male flowers form?
cymose panicles (complex racemes); each male flower is comprised of 5 stamens (aka anthers, “bananas”) each with a pollen sac
What are the some facts about male pollen?
~ 6000 pollen grains per stamen; contains the food necessary for the seedling to survive; can travel for thousands of miles but is only 5% viable after 3 days
What is raceme (ra-seem)?
a cluster of flowers attached by short stalks (pedicels) of equal distance from a main axis
What is a pistil?
the female reproductive organ; comprised of 2 stigmas and an ovule