522 ASCLEPIADE& (Brown). 
XIV. Cordylogyne.—Corona-lobes hastately subspathulate, otherwise as in 
Periglossum. Staminal column cylindric, not constricted under the anther- 
appendages. Pollen-masses subtranslucent at the attached end and much 
longer than their caudicles. Style exserted much beyond the anther- 
appendages. 
XV. Krebsia.—Corona-lobes exserted beyond the recurved tips of the, erect 
corolla-lobes, narrowly-lanceolate below, tapering into a subulate point, in- 
curved at the apex, acutely keeled down the back, with a triangular wing on 
each side of the keel at the base forming a rhomboid expansion, no appendage 
or keel on the inner face. 
XVI. Schizoglossum.—Corona-lobes longer or shorter than the corolla-lobes ; 
dorsally flattened, thin (very rarely somewhat thick and fleshy) in dried 
flowers, never complicate, but occasionally with slightly incurved margins, 
often produced into a short or long subulate or filiform point at the apex and 
having 2 keels (rarely without them) and frequently also 1 or 2 filiform or 
other appendages or 2 basal teeth on their inner face, Pollen-masses opaque 
or with a small translucent space just below the apex. 
XVII. Fanninia.—Corona-lobes ‘shorter than the suberect corolla-lobes, 
dorsally flattened, not thick, linear-oblong, with a distinct midrib and 2 erect 
basal lobules, but no keels. Flowers rather large and showy, in terminal 
umbels, white with a purple corona. 
XVIII. Asclepias.—Corona-lobes laterally flattened or at least measuring as 
much from front to back as in breadth, with the sides folded together through- 
out or at the base or apex, and often produced into teeth directed to the centre 
of the flower, forming an open cavity, fissure or channel between them 
(cucullate or complicate), with or without a horn or other appendage within 
the cavity, sometimes with the apex of the lobe prolonged, but never dilated 
or petaloid. 
X1X. Pachycarpus.—Corona-lobes at their basal part or throughout horizontally 
radiating or ascending from the stout staminal column, sometimes consisting 
of a pair of contiguous fleshy erect lobes (keels) with or without a short point 
beyond, or more usually long and dorsally flattened, at least beyond the keels, 
linear, linear-oblong or spathulate with a distinct claw and often petaloid biade, 
with or without 2 parallel keels or large fleshy or wing-like erect contiguous 
Icbes or keels at their base and the upper part often curving over them. 
§§ Corona-lobes united into a tube (at least at the base), truncate, 
toothed or lobed at the top, with or without keels or other processes 
within, : 
XXII. Cynanchum,—Small herbs 2-8 in. high, branching at the base, ora 
shrublet with the rigid arching woody branches. Flowers small, 
§§§ Corona complex or of 3 series of erect lobes :—outer series of 5 simple 
lobes opposite the corolla-lobes and a middle series of 5 deeply trifid or 
auriculate lobes alternating with them, both arising in the angle between 
the corolla and staminal column, and distinct or more or less united at 
the base in apparently 1 series ; inner series of 5 simple lobes on the 
staminal column opposite the anthers. 
XXV. Eustegia.—Dwarf herbs branching at the base with branches 2-6 in. 
long. Leaves linear-filiform to linear-hastate. Carpels with several ovules 
ineach, Follicles not seen. 
XXVI. Emicocarpus.— Herb, with prostrate branches 2-4 ft. long. Leaves 
palmately divided. Carpels with 1 ovule in each. Follicles small, ob- 
re el with 3 spreading spines. Seed solitary, without a tuft of hairs at 
either end. 
+t Stems twining or rambling. 
- § Corona in one series; no outer corona. 
XX. Glossostephanus.— Corona of 5 free simple lobes, laterally compressed and 
dorsally grooved. Style produced beyond the anther-appendages into an 
acutely bifid beak. 
