ROBINSON. —- NEW SPERMATOPHYTES, CHIEFLY FROM MEXICO. 37 
DeCandolle does not appear to have seen the plant of Humboldt and 
Bonpland, and the distinctions on which he attempted to separate 
E. triangulatum were deduced from the description of Kunth, but on 
comparison of the plants themselves these distinctions do not appear 
to be definite or important. The species should certainly be united and 
stand under the older name E. rusricaute HBK. 
BRICKELLIA BETONICAEFOLIA Gray, Pl. Wright. ii. 72 (1853). In the 
typical form of this rather variable species the leaves are ovate-oblong 
and flat, the larger 6 cm. long, 3 cm. wide ; petioles very short, scarcely 
over 2 mm. long; longer scales of the involucre rather attenuate. 
Var. HUMILIS Gray, ].c. Leaves ovate-oblong, flat, essentially sessile, 
the largest 3.8 cm. long, 1.5 cm. wide; longer scales of the involucre 
linear, attenuate. 
Var. elliptica Robinson, n. var., foliis late ellipticis planis 3-4 cm. 
longis 1.8-3 cm. latis subsessilibus ; squamis involucri atropurpureis 
interioribus lanceolati-linearibus attenuatis. — Barranca below Sandia 
Station, Durango, Mexico, alt. 2135 m., 13 October, 1905, C. G. Pringle, 
no. 10,102 (type, in hb. Gray). ° - 
Var. conduplicata Robinson, n. var., caule 6-9 dm. alto ; foliis 2-3 
cm. longis 1.4-1.8 cm. latis saepissime conduplicatis ; petiolo gracile 
4-5 mm. longo ; squamis involucri interioribus oblongi-linearibus atro- 
purpureis vix attenuatis. —San Luis Potosi, Mexico, on rocky hills, 
San José Pass, 16 August, 1890, C. G. Pringle, no. 3171 (distributed as 
B. betonicaefolia Gray). Mountains near General Cepeda, Coahui 
Mexico, alt. 1920 m., 7 October, 1905, C. G. Pringle, no. 10,081 (type, 
in hb. Gray). 
Brickellia saltillensis Robinson, n. sp., caulibus teretibus 9-12 dm. 
altis gracilibus striatulis pallide viridibus vel leviter purpurascentibus 
molliter breviterque pubescentibus foliosis ; foliis alternis petiolatis in 
axillis proliferis, laminis late ovatis obtusis vel subacutis serratis tenui- 
bus utrinque viridibus brevissime pubescentibus basi rotundatis 4-5.5 
em. longis 2-4 cm. latis a basi 3-nerviis laxe reticulato-venosis ; petiolo 
1-1.4 em. longo pilis crispis glanduloso-puberulo ; foltis parvis ellipticis 
2-4 in axillis; panicula angusta 7-30 cm. longa 4-7 cm. diametro fol- 
ioso-bracteata ; cymulis saepissime 3-capitulatis ; pedicellis gracillimis 
filiformibus glanduloso-puberulis nutantibus ; capitulis ca. 14-floris 1.5 
cm. longis ; involucri subturbinati squamis ext I 1008 SHIALIS 
lanceolatis attenuatis dorso puberulis, interioribus lanceolati-linearibus 
attenuatis purpureo-tinctis 1-1.2 em. longis; corollis albidis angustis- 
sime tubulosis 8-9 mm. longis glabris, faucibus nullis, limbi dentibus 
brevissimis erectis; styli ramis nigrescentibus vix clavatis longe ex- 
sertis; achaeniis columnaribus 4.5 mm. longis adpresse pubescentibus 
