Drummondiane. N. O. Composite. 
TAB. CXLV. 
Gymwnopsis UNISERIALIS. 
Caule erecto scabro subdichotomo ramoso, foliis oblongo-ovatis 
petiolatis angulato-dentatis supra nudiusculis obsolete punc- 
tatis subtus strigoso-pilosis, involucri squamis uniseriatis 
oblongo-spathulatis hirsutis, receptaculi paleis achznia gla- 
berrima nitida volventibus demum tuberculatis scabris tubu- 
losis, pappo coroniformi fimbriato. 
Has. Texas. II. (n. 135, bis). Drummond. 
This has decidedly the scales of the involucre in a single 
series; in other respects it agrees with the Aldama dentata of 
Lessing, Gymnopsis Schiedeana, DC. (and Llav. et Lex?) The 
leaves are minutely dotted and nearly naked above, beneath 
densely clothed with close-pressed hairs. Florets of the ray 
neuter: of the disk perfect; the corolla with 5 long lacinize; 
branches of the style elongated. The palea of the receptacle 
completely envelopes the lower part of the floret and is even 
on the surface, afterwards it becomes tuberculated and the edges 
seem to combine so as to form a tube, firmly including the 
very glossy black achenium, with its short crown-like pappus. 
Fig. 1. Floretof the ray. jf 2. Do. of the disk with its palea. 
J. 3. The palea in a more advanced state, including the achenium. 
f. 4. Achenium. /f. 5. Pappus:—magnijied. 
QP 
