Monographs Details:
Authority:
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Family:
Rhamnaceae
Rhamnaceae
Description:
Family Description - Fls regular, 4- or 5-merous, perfect or sometimes unisexual, rather shortly perigynous; pet distinct, often clawed, rarely wanting; stamens as many as and alternate with the sep, opposite and often enfolded by the concave or hooded pet; ovary sessile on the intrastaminal nectary-disk or ± immersed in it (thus sometimes seemingly inferior), 2–3(–5)-locular, with a single erect, basal ovule per locule; style terminal, undivided to often deeply cleft; fr a drupe or sometimes a capsule or schizocarp; embryo large, with 2 cotyledons; endosperm usually scanty or wanting; woody plants with simple lvs and small fls. 55/900, cosmop.
Family Description - Fls regular, 4- or 5-merous, perfect or sometimes unisexual, rather shortly perigynous; pet distinct, often clawed, rarely wanting; stamens as many as and alternate with the sep, opposite and often enfolded by the concave or hooded pet; ovary sessile on the intrastaminal nectary-disk or ± immersed in it (thus sometimes seemingly inferior), 2–3(–5)-locular, with a single erect, basal ovule per locule; style terminal, undivided to often deeply cleft; fr a drupe or sometimes a capsule or schizocarp; embryo large, with 2 cotyledons; endosperm usually scanty or wanting; woody plants with simple lvs and small fls. 55/900, cosmop.
Common Names:
The buckthorn family
The buckthorn family