Agavaceae Endlicher

habit

woody plants, herbaceous plants

important diagnostics

spiny stems or leaves

distribution

African, Asian, Australian and Oceanian, North American, South American

leaf: position

alternate

leaf: nature

not compound

leaf: venation

longitudinal in leaves or leaflets, palmate in leaves or leaflets

margin

with entire margin, lobed or divided, dentate

leaf: stipules

absent

inflorescence

raceme, spike, compound, sympodial or monopodial

flower: sexuality

bisexual, unisexual

flower: symmetry

actinomorphic, zygomorphic or irregular

flower: receptacle

small, enlarged, completely united with the ovary, totally or partially covering it

flower: disc

absent

flower: perianth number

6

flower: perianth nature

perianth of similar segments

flower: sepal number

0

flower: petal number

6

flower: petal position

all free from one another, petals connate, petals imbricate

stamen: number

6

stamen: symmetry

the same number as and opposite the petals or alternate with the sepals

stamen: anthers

basifixed, introrse, opening by longitudinal slits

stamen: filaments

inserted on the corolla, not connate

pistil: style

styles absent, stigmas sessile, style 1, or styles more or less connate

pistil: carpel

3

pistil: ovary

1-locular, 3-locular

pistil: ovule

1 in each loculus, 2 in each loculus, 3+ in each loculus

pistil

ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae, ovules attached to the base of the ovary

fruit: type

a capsule, fleshy

fruit: seed

1 seed, 2 seeds, 3+ seeds

seed: embryo

straight

seed: endosperm

seeds with endosperm

 

Related Objects

Interactive Keys by Xiangying Wen   Yucca sp. (Xiangying Wen) Image/JPEG

 

Related Links (opens in a new window)

Treatments in Other Floras @ www.efloras.org Annotated Checklist of the Flowering Plants of Nepal Flora of Missouri Flora of North America Flora of Pakistan Flora of Taiwan Checklist Interactive Keys by Xiangying Wen Other Databases W3TROPICOS IPNI