CORYOIUM. 179 
Flowers a dull canary-yellow. A pretty little species, well marked 
by its lip, which much resembles the curved head and neck of a swan, 
the head turned backward and downward beyond the apex of the 
clinandrium. This seems constant, and I know of no other species 
having a lip resembling it. 
IX.—CORYCIUM. 
Swartz, in Kongl. Vetensk. Acad. Handl., vol. xxi. (1800), p. 220; 
Bentham & Hooker, f., Gen. Plant., vol. iii. p. 638. 
Odd sepal posticous, narrow, cohering with the larger, wide, 
concave or saccate petals, in a galeate piece; side sepals mem- 
branous, more or less connate. Lip adnate at its base to the column, 
the limb transversely lunate or bilobed, more rarely oblong or 
lanceolate, projecting forward or deflexed, produced above the junction 
with the column into a variously-shaped fleshy appendage. Column 
short, the rostellum produced transversely into two horizontal arms; 
stigma posticous, pulvinate, lunate, or bilobed, or two stigmas, lateral 
and distant. Anther-cells more or less distant, placed sometimes in 
front of, sometimes behind the arms of the rostellum, erect or ascend- 
ing, the gland of the pollinium uppermost and supported by the arms 
of the rostellum. Capsule cylindrical, usually much narrowed towards 
the apex.—Terrestrial erect herbs, with undivided sometimes stalked 
tubers, leafy stems, narrow, flat or crisped leaves, and flowers in dense 
spikes. (Named from xwpuxos, a leathern bag). 
This genus is closely allied to Pterygodium, from which it chiefly 
differs by its side sepals being united for the greater part of their 
length, by its usually more contracted hood; and by the more reflexed 
appendage of the lip. The species are chiefly distinguished by the 
shape of the lip or its appendage. 
Distrisution.—Hight species have been described (all exclusively 
South-African), and there are probably two others undescribed; of 
these four come within our limits, four are chiefly western, and two 
belong to the eastern districts. 
KEY TO THE SPECIES. 
Limb of the lip sessile, bilobed a ac ee .. C. Biconorum 1. 
Limb of the lip sessile, lanceolate, or oblong aft .. C. BIripuM 2. 
Limb of the lip clawed. 
Appendage of the lip bifurcate behind .. <- -» ©. OROBANCHOIDES 3, 
Appendage of the lip muticous behind .. te -» ©, Excisum 4. 
1. Corycium bicolorum, Swartz, in Kongl. Vetensk. Acad. Handl., 
vol. xxi. (1800), p. 220.—Glabrous, erect, 6—15 in. high; stem leafy, 
