|
parallelodromous |
|
venation |
|
Having two or more primary veins that run more or less parallel to one another over most of the laminar length and converge near the apex. |
|
one-veined |
= hyphodromous, single-veined |
venation |
|
Having one median, primary vein and no other venation externally evident. |
|
actinodromous |
|
venation |
|
Having three or more primary veins that diverge radially from a point at or above the base of the blade and run toward the margin, reaching it or not. |
|
palinactinodromous |
|
venation |
|
Compound actinodromous, with higher-order branch radiations above the level of and similar to the primary one. |
|
simple-craspedodromous |
|
venation |
|
Having a midvein that branches to either side along the length of the lamina, the secondary veins and their branches all running toward and terminating at the margin. |
|
semicraspedodromous |
|
venation |
|
Having a single median primary vein that branches to either side along the length of the lamina, each secondary vein running thence toward and bifurcate near the margin, one branch terminating at the margin, the other upwardly arcuate and merging with the superadjacent secondary vein, thus forming one of a series of marginal loops. |
|
single-veined |
= hyphodromous, one-veined |
venation |
|
Having one median, primary vein and no other venation externally evident. |
|
campylodromous |
|
venation |
|
Having several primary and/or strongly developed secondary veins that diverge from a point or small area near the base of the blade and run thence ultimately toward the apex, recurving proximally, arcuate and converging distally, reaching the apex or not. |
|
coriaceous |
= leathery |
texture |
|
Moderately thick, tough, and very pliable. |
|
crumbling |
= fatiscent; > farinaceous, mealy |
texture |
|
Easily disintegrating in relatively small pieces, either spontaneously or under pressure. |
|
fatiscent |
= crumbling; > farinaceous, mealy |
texture |
|
Easily disintegrating in relatively small pieces, either spontaneously or under pressure. |
|
corky |
= suberous |
texture |
|
Firm, relatively light, discontinuous but strongly cohesive, and resilient. |
|
cartilage-like |
= cartilaginous |
texture |
|
Firm, dense, tough, somewhat pliable, and resilient, like human cartilage. |
|
mucous 2 |
= mucilaginous; < glutinous |
texture |
|
Slimy. |
|
rigent |
= rigid, stiff |
texture |
|
Strongly resisting deformation over its length. |
|
woody |
= ligneous |
texture |
|
Of or resembling wood (xylem). |
|
cartilaginous |
= cartilage-like |
texture |
|
Firm, dense, tough, somewhat pliable, and resilient, like human cartilage. |
|
crustaceous |
= crusty |
texture |
|
Thin, dry, hard, and brittle. |
|
osseous |
= bony |
texture |
|
Very hard and rather brittle, like bone. |
|
pergamentaceous |
= parchment-like |
texture |
|
Very thin, pliable, and fairly tough; like parchment. See also chartaceous (papery, papyraceous), membranaceous (membranous). |
|
crusty |
= crustaceous |
texture |
|
Thin, dry, hard, and brittle. |
|
rigid |
= rigent, stiff |
texture |
|
Strongly resisting deformation over its length. |
|
friable |
= brittle |
texture |
|
Dry, firm and easily broken. |
|
corneous |
= horny |
texture |
|
Hard, dense, fine-grained or compactly fibrous, and tough; resembling the substance of animal horn. |
|
mealy 1 |
= farinaceous; < crumbling, fatiscent |
texture |
|
Of or bearing minute, relatively stout trichomes that are collectively meal- or flour-like and easily detached. |
