576 PROCEEDINGS OF THE AMERICAN ACADEMY, 
plant about 1 cm. high. — Collected by C. Sartorius in Vera Cruz, alti- 
tude 2,700 m., April, 1856; and by C. G. Pringle, Serrania de Ajusco, 
Federal District, altitude 2,700 m., 23 May, 1898, no. 6859. 
A species resembling in habit B. ramiflora, var. sguarrulosa, Gray, 
but having larger and more numerously flowered heads, and a longer 
pappus, also related apparently to B. sguarrosa, HBK., from which, 
however, it is distinguished by the entire absence of the squarrose char- 
acter of the involucral scales. Only staminate plants were collected 
by Sartorius, yet the specimen in herb. Gray in the inflorescence, foliar 
and involucral characters, agrees so closely with Mr. Pringle’s specimens 
that the writer has no hesitation in referring both to the above hitherto 
unpublished species. 
Desmanthodium lanceolatum. Herbaceous, perennial (?): stems 
1 to nearly 2 m. high, freely branching above, striate, glabrous, purplish ; 
internodes much exceeding the leaves: leaves lanceolate to lance-ovate, 
acuminate, acute, 5 to 10 em. long, 2 to 4 cm. broad, narrowed below into 
a subpetiolate base, sharply and somewhat unequally dentate with promi- 
nent and more or less divaricately spreading teeth, essentially glabrous 
upon either surface, paler beneath, margins ciliate-hispid: heads termi- 
nating the branches in sessile dense glomerules disposed in a cymose-pall- 
icle: bracts broadly ovate, acute, glabrous; margins whitish or subscarious? 
fertile achenes elliptic-oblong, narrowed at either end, 3 mm. long, black, 
shining. — Collected by C. G. Pringle, on mountains above Cuernavaca, 
State of Morelos, altitude 2,100 m., 9 August, 1898, no. 6940. 
This species is similar in habit and inflorescence to D. ovatum, Benth., 
but easily distinguished by the lanceolate sharply dentate leaves, and by 
larger and less obovate achenes. 
Lepacuys cotumnaris, Torr. & Gray, var. PULCHERRIMA, Torr. & 
Gray, Fl. ii. 315; Gray, Syn. Fl. i. pt. 2,264. Obeliscaria pulcherrima, 
DC. Prodr. v. 559. Ratibida columnaris, var. pulcherrima, Don in 
Sweet, Brit. Fl. Gard. n. s. iv. t. 361. 
To this well marked variety, characterized by the brown-purple rays 
more or less bordered with yellow, the following Mexican specimens may 
be referred. — Coahuila, Carrizilos, 28 May, 1847, Gregg, no. 60, Palmer; 
no. 717 (coll. of 1880); Nuevo Leon, 28 September, 1897, Mose, 00- 
3077. 
Bidens decumbens. Stems decumbent, 1.5 to 3 m. long, tetragonal, 
striate, glabrous except at the nodes, purplish: leaves simple and broadly 
ovate, oblong-ovate to obovate, or pinnately 3-parted (the terminal di 
vision often rhombic-ovate, the lateral divisions obovate, unequal at the 
