Bromeliaceae A. L. Jussieu

habit

herbaceous plants

important diagnostics

spiny stems or leaves

hairs

stellate, peltate or scale-like

distribution

African, North American, South American

leaf: position

alternate, distichous

leaf: nature

not compound

leaf: venation

pinnate or hardly visible in leaves or leaflets., invisible or leaves 1-nerved, longitudinal in leaves or leaflets

margin

with entire margin, dentate

leaf: stipules

absent

inflorescence

solitary, raceme, spike, head, 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, enlarged, totally or partially free from the ovary

flower: disc

absent

flower: perianth number

6

flower: perianth nature

perianth of calyx and corolla

flower: sepal number

0, 3

flower: sepal position

all free from one another, connate

flower: sepal nature

sepals imbricate or contorted

flower: petal number

3, 6

flower: petal position

all free from one another, petals connate, petals imbricate

flower: petal nature

petals contorted

flower: corona

present, or scales in the throat

stamen: number

6

stamen: anthers

dorsifixed or ventrifixed, basifixed, introrse, opening by longitudinal slits

stamen: filaments

free from the corolla, inserted on the corolla, not connate

stamen: other characters

anthers with a conspicuous appendage

pistil: style

style 1, or styles more or less connate

pistil: carpel

3

pistil: ovary

3-locular

pistil: ovule

3+ in each loculus

pistil

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

fruit: type

a capsule, fleshy

fruit: seed

3+ seeds

seed: embryo

straight

seed: endosperm

seeds with endosperm

 

Related Objects

Flora of China   PDF File PDF Interactive Keys by Xiangying Wen   Ananas comosus (Xiangying Wen) Image/JPEG Billbergia pyramidalis (Xiangying Wen) Image/JPEG Billbergia pyramidalis (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 Chinese Plant Names Flora of China Flora of North America Flora of Taiwan Checklist Interactive Keys by Xiangying Wen Other Databases W3TROPICOS IPNI