VOL. 5] Plants from Stnaloa, Mexico. 223 
Melampodium geminatum. Annual, branching above, 6-7 
dm. high, sparingly hirsute: leaves somewhat hirsute upon both 
sides, elliptical-acuminate, narrowed to the base, 4-7 cm. long, 
2-3.cm. wide, crenate-serrate; petioles 1-4 cm. long: inflorescence 
in lax corymbose panicles from the ends of the short branches; 
peduncles 1-4 cm. long; pedicels 5-10 mm. long: bracts of the 
outer involucre 5, membranaceous, imbricated, ovate-lanceolate, 
acuminate, striate, 3-3.5 mm. long, the outer two much smaller: 
ray flowers 2, pistillate; rays yellow, 2 mm. long; style divided 
more than half its length into narrow branches: sterile flowers 2; 
corollas 5-toothed, the tube as long as the campanulate limb, 
loosely enclosed by bracts that are yellow tinged, pointed and 
dentate above: akenes 4 mm. long, obovoid, subcompressed, 
under alense transversely rugose with numerous small ridges; 
the enveloping bract to be removed only by boiling and scraping, 
tuberculate and near the top from each side bearing a short 
subulate horn. 
his interesting plant suggests in its general appearance and 
sume of its characters 7rigonospermum, but its akene perma- 
nently invested by the bract prevents it from going into that 
genus. ‘The characters of the involucres are not unlike those of 
Unxia, a genus reduced to Melampodium by Benth. & Hook. 
Collected near Cofradia and Imala. 
Gymnolomia auriculata. Many hispid-hirsute stems from a 
perennial root, 5-6 dm. high; leaves narrow-lanceolate, on 
petioles 1-2 mm. long or sessile, somewhat auriculate at base, 
scabrous, slightly dentate, 10-14 cm. long, 10-12 mm. wide, 
broadest above the middle, with strong midrib; heads solitary, 
terminating the stems on peduncles 8-12 cm. long, hemispherical, 
2 cm. in diameter: peduncles thickened upward; bracts of the 
involucre ovate-lanceolate, 1 cm. long, long-hirsute; rays 10-15, 
2.5 cm. long, 4 mm. broad, with a rudimentary style and 2-3 
distinct rudimentary anthers, the akenes inane and triangular; 
disk flowers yellow, numerous; corolla tube pubescent, covering 
the top of the somewhat compressed, quadrangular akene; 
pappus none. 
