222 Plants from Stnaloa, Mexico. [ZOE 
Cucurbita radicans Naud. Generally climbing bushes and 
trees, but sometimes prostrate over the ground. Altata to 
Cofradia,. 
Elaterium longisepalum Cogn. Common in ravines. The 
mature fruit is very gibbous, 22 mm. long, 13 mm. wide, densely 
covered with soft, gray spines. 
Cyclanthera micrantha Cogn. Common. 
Echinopepon lanatus Rose. Common over the whole region. 
Echinopepon cirrhopedunculatus Rose. Cerro Colorado. 
Roseanthus elongatus Rose. Cerro Colorado. 
Decacheta Haenkeana DC. Cerro Colorado. It is often 8 feet 
tall. 
Ageratella Palmert Robinson. Growing among rocks of 
Cerro Colorado. 
Barroetea subligera Gray. Culiacan. 
Brickeliia diffusa Gray. Common about Cofradia. 
Ophryosporus ovatifolius B. & H.? Probably this species, al- 
though it does not exactly agree with the description in DC. 
Prod. The plant is not frutescent and is minutely resinous- 
dotted. Collected on Cerro Colorado. 
Ageratum corymbosum Zucc. Var. Common about Cofradia. 
Ageratum sp. Differing from F. lucidum Rob. in its more 
compound corymb, smaller heads and akenes, green stems and 
larger leaves. Cerro Colorado. 
Guardiola rotundifolia Robinson. Cofradia. 
Melampodium canescens. Erect, 1-2 dm. high, widely 
branched; stems villous-hirsute; leaves entire, 2-3 cm. long, 3-4 
mm. wide, linear-lanceolate, narrowed to the sessile base, slight- 
ly pubescent and scabrous above, densely white flocculent- 
sericeous below; peduncles filiform, 1-4 cm. long; heads 8-10 
mm. broad including the orbicular rays that are 1 cm. in diam- 
eter; involucral bracts ovate, ciliate; fruit tuberculate; hood 
ciliate, truncate, nearly equalling the circumference of the top of 
the akene, with a long, curved appendage from the center and 
one from each of the ends. 
In general appearance this species resembles J/. longipes Rob- 
inson. Growing on dry rocky soil about Cofradia. 
