LXXXV. ASCLEPIADEZ (BROWN). 235. 
a membranous appendage. Pollen-contents of each anther-cell united into one 
wary mass. Pollen-masses opaque, without a pel/ucid margin, attached in pairs to 
each of the pollen-carriers by short or long caudicles, from which they are 
pendulous in the anther-cells. Pollen-carriers turgid, rarely flattened, with a 
dorsal suture, hard and horny, varying from reddish-brown to black. 
Corona very small and inconspicuous, arising from the 
filament-part of the staminal-column, easily over- 
looked and may be thought to be absent. 
Apex of the style produced into a beak much beyond 
the anthers. 
Corona of 5 minute teeth or lobes alternating with 
the subsessile anthers at their base . . 138. MICROSTEPHANUS. 
Corona of 5 minute fleshy tubercles opposite the 
anthers, near the middle of the short filament 
part of the staminal column : x . 14, PopDOsTELMA. 
Apex of the style not produced beyond the anthers, 
corona of 5 fleshy tubercles. (See also Tylo- 
phora and Xysmalobium Holubii, and X, de- 
i ddd d OP Pe pee eee bars ot 
Corona distinct, in 1 or 2 series. 
Corona of 5 free lobes arising from the corolla-tube, 
none on the staminal-column, but sometimes 
inserted on the corolla just above its base . . 15. GLOSSONEMA. 
Corona simple or double, arising from the staminal- 
column or at its very base in the angle where the 
column and corolla unite. 
Corona double, i.e. in two series. 
Outer corona annular or cup-shaped, often pen- 
tagonal, truncate, shortly lobed or denticu- 
late, 
Leafless fleshy twiners or bushes; inner 
coronal-lobes not spurred at the base =. 26, SARCOSTEMMA. 
Leafy twiners; inner coronal-lobes spurred at 
the base. ; ; : ‘ . 27, DEMIA. 
Outer corona flattened out and adpressed to the 
base of the corolla, obscurely lobulate ; 
inner coronal-lobes oblong, refracted and 
accumbent on the outer corona . : . 28. DIPLOSTIGMA. 
Corona in one series, no outer corona, but often 
furnished with appendages on the inner face 
of the lobes or tube formed by their union. 
Coronal-lobes connate into a tube or cup, at least 
at their base, 5- or 10-lobed or toothed at 
the top and sometimes with minute teeth 
between the principal teeth, with or with- 
out a tooth, lobe, thickening or keels within 
in front of the 5 principal lobes or teeth. 
Corona with the 5 principal teeth or lobes 
alternating with the corolla-lobes, often 
furnished with appendages or keels 
within 2 : ; - : . 80. CYNANCHUM. 
Corona with its 5 deeply concave-hooded lobes 
opposite the corolla-lobes 3 ‘ . 81. SOLENOSTEMMA. 
Corona of 5 distinct lobes usually quite free, 
occasionally confluent at the base, but 
