ASCLEPIADACH. 681 
attached to the filaments or to the backs of the anthers or to both; 
anthers crowning the column, free or connate, adnate by the con- 
nective to the stigma, 2-celled, the tips often produced into 
inflexed membranes ; pollen aggregated into one or two granular 
or waxy masses (pollinia) in each cell, the masses united in pairs 
or fours to a gland el de on the stigma. Carpels 2, superior, 
distinct, enclosed wi the staminal column; styles 2, short, 
free almost throustilats but connate at the stigma, which is short, 
5-angled, and rorerar between the anthers, or longer and produced 
beyond as a simple or 2-fid column; ovules many, rarely few, 
2-seriate in each caval: Fruit of 2 follicles. Seeds compressed, 
usually flat, ovoid, winged or tipped by a tuft of long, silky hairs 
(coma), which is rarely absent; albumen dense, copious; embryo 
large ; cotyledons flat ; radicle inferior. 
Filaments free; anthers acuminate or with a terminal appendage ; 
pollen masses granular, in pairs in each e 
Corona of 5 short, thick scales oarentes to the corolla and separate 
from the filaments; seeds with coma 
Corolla Aa funnel-shaped, the ‘ies overlapping ...Cryptostegia. 
Corolla small, rotate :— 
Lobes of corolla overlapping ............:cssscccssesseeeseses Sid 
Lobes of corolla valvate Hemide 
Corona of filiform or subulate scales closely adjacent or adnate to 
the filam 
‘iam without interposed glands; seeds — coma 
— 
Filaments with interposed teeth or glands; seeds 
es short, sessile ; corolla-lobes short, ovate ; — oer 
ptocaulon. 
ar: loosely panicled; corolla-lobes lanceolate ; follicles with 
ny longitudinal, membranous wings ...........-... yriopteron. 
iiticractil soaitie pollen-masses waxy :— 
Pollen-masses in pairs in each cell (20 in all), sessile in fours (2 pairs) 
on the corpuscle; anthers with membranous, inflexed Pile ; corolla 
rotate ; lobes valvat anthus. 
Pollen-magses solitary in each cell (10 in all) ; sessile or scecaleh in 
pairs on the corpuscle :— 
*Pollen-masses pendulous from the tip or side of the corpuscle below 
the edge of the stigma; anthers with a membranous, inflexed apex ; 
seeds with coma :—{p. 682. 
Corona double, the outer annular attached to the corolla, the - ne 
