Rugose. 
Saccate. 
Scabrous. * 
Scale. 
Scandent. 
Scape. 
Scarious. 
Scroviculate. 
Secund. 
Sepal. 
Serrate. 
Sessile. 
Setaceous. } 
Setose. 
Sinuous. 
Spathulate, 
Species. 
Spur. 
Stamen. 
Stellate. 
Stigma. 
Stipule. 
Stipulate. 
Strangulated. 
Striate. 
Strigose. 
Style. 
Subulate. 
Terete. 
Thalamus. 
Throat. 
Tormentose. 
Truncate. 
Tuber. 
Umbel. 
Uncinate. 
Undulate. 
Variety. 
Ventricose. 
Verrucose. 
Verticillate. 
Viscous. 
Whorl. 
Coarsely wrinkled. 
Furnished with or having the form of a sac, or pouch; hav- 
ing a very short spur. 
Rough to the touch; having sharp points. 
Rudimentary leaf, usually covering a leaf bud. 
Climbing. 
A leafless radical stem bearing flowers either singly or in 
umbels and racemes. 
Membraneous; dry and shrivelled. 
Pitted; having little depressions. 
Arranged on one side only. 
One of the parts of the calyx—usually three in orchids. 
Notched on the edge like a saw. 
Said of a leaf or flower without a stem. 
Bristly; covered with stiff, straight hairs. 
Undulating; curving in and out. 
Oblong but widening towards the end; spoon-shaped. 
A division of a genus of plants consisting of plants which 
bear a close resemblance to each other in their essen- 
tial features and produce similar progeny. 
A sharp, horn-shaped sac. 
The male organ of reproduction in plants—in the case of 
orchids the stamens and the style are joined in a 
column. 
Star-like. 
The upper extremity of the pistil. 
Small leaf-like appendage, situated in pairs at the base of 
the petiole. 
Having stipules. 
Contracted and expanded irregularly; waisted. 
Marked with longitudinal lines. 
Covered with stiff hairs. 
The middle part or filament of the pistil—in orchids joined 
with the stamens in a column. 
Awl-shaped; slender and tapering to a point. 
Round and long like a taper. 
The floral receptacle. 
The upper part of a tube. 
Covered with thick, cotton-like growth; downy, woolly. 
Appearing as if cut off at the tip. 
An underground fleshy stem or modification of a root, us- 
ually roundish and of annular duration, with buds 
from which new plants are produced. 
A cluster of flowers with a number of flower stalks or ped- 
icels nearly equal in length, each bearing a single 
flower, and springing from a common centre. 
Hooked at the end. 
Having a waved margin or surface. 
A plant which differs somewhat from the type of its own 
species, but not sufficiently so to make it a new species. 
Swelling unequally on one side. 
Warty. 
Whorled. 
Covered with a sticky exudation. 
Three or more similar structures springing from the same 
point. 
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