ROBINSON. — MEXICAN PLANTS. 341 



base and without definitely marked throat; segments ovate-oblong. — 

 Collected in Oaxaca by C. G. Pringle, on Monte Alban, altitude L,800 

 m., 8 October, 1894, no. 4959, type (in herb. Gray) ; by L. C. Smith 

 on mountaiDS of San Juan del Estado, altitude 2,100 m., 4 November, 



1894, no. 274; and by C. & E. Seler, above Porian, 27 November, 



1895, no. 1547. This species stands very close to E. Loesenerii and may 

 eventually prove a variety of it, but as yet, although each species has 

 been independently secured by three collectors, no intergradation has 

 been observed. The differences are as follows : E. Smithii has smaller 

 leaves of a more deltoid contour and with a cinereous rather than ochra- 

 ceous indumentum ; its inflorescences are considerably smaller, while the 

 involucral bracts are larger, more herbaceous, and less closely appressed ; 

 finally the teeth of the corolla are, on careful comparison, longer and 

 ovate-oblong rather than deltoid as in E. Loesenerii. 



E. Thieleanum, Klatt, Bull. Soc. Bot. Belg. xxxi. 191 (1892). 

 Adil syn. E. rhyrianthum, Klatt, Botanisches Beiblatt zur Leopoldina, 

 1895, p. 3, founded on the same specimens and described in the same 

 •words. 



E. Valverdeanum, Klatt, Bull. Soc. Bot. Belg. xxxi. 188, (1892). 

 Add syn. E. chrysocephalum, Klatt, Botanisches Beiblatt zur Leopoldina. 

 1895, p. 2. Dr. Klatt's two species are founded upon the same speci- 

 mens and their descriptions are identical. The earlier name must, of 

 course, be adopted. 



E. Vitalbae, DC. Prodr. v. 163 (183G). Add syn. E Ecicadorae, 

 Klatt, Ann. k. k. Naturh. Hofmus. Wien, ix. 356 (1894). 



Mikania eriophoua. Scb. Bip., var. chiapensis. Pubescence 

 more hirsute than in the type, the hairs spreading, not at all felted or 

 interplexed : leaves large, deeply cordate, becoming 2.2 dm. long, and 

 1.7 dm. broad: involucral scales early glabrate. — Collected by E. W. 

 Nelson at Chicharras, Chiapas, Mexico, altitude 900 to 1,800 m., 6 Feb- 

 ruary, 1896, no. 3769. This variety has much the habit of M. pyrami- 

 data, J. D. Smith, but that has the leaves smaller, rounded at the base, 

 and the pubescence subappressed on the pedicels. 



Porophyllum brachypodum. Shrub, scarcely or not at all glau- 

 cous ; stems somewhat rigid, branched toward the end, lucid: leaves 

 fonly the upper ones shown) lanceolate to linear, narrowed to an obtus- 

 ish glanduliferous point, cuneate at the base, entire, 3.5 cm. long, 4 to 8 

 mm. broad; petioles 4 mm. long; glands on the blade all marginal, large, 

 subremote, on the narrower leaves often alternate: pedicels 5 to 8 mm. 

 lone, slio-htlv clavate, spreading; involucral bracts oblong, rather broad, 



