10 ROBINSON. 



It seems probal)le that the "Andimarca" mentioned is Andamarca 

 in the Department of Junin, a locahty about 300 km. distant from 

 Lucumayo Valley. The leaves in the Mathews plant are somewhat 

 more deeply cordate and a little more bluntly toothed than in the 

 C'ook & Gilbert plant, but in the presence of pretty close agreement 

 in all essential features these differences do not appear of much classi- 

 ficatory moment. There being, however, a slight doubt as to the 

 locality of the Mathews specimen, it has seemed better to select the 

 other as the type, particularly as a species (described below) had 

 already been dedicated to Alexander Mathews. 



E. CUTERVENSE Hieron. in Engl. Bot. Jahrb. xl. 383 (1908). This 

 species was originally found from nearCutervo and Tambillo in North- 

 ern Peru by von Jelski. It is described (Hieron. 1. c.) as having the stem 

 up to 2.5 cm. in thickness. This certainly must be a clerical error 

 for 2.5 mm., since surely no plant with a stem 2.5 cm. thick would be 

 characterized as " sutf ruticosa vel fruticulosa." The species is 

 furthermore described as having the leaves sessile or short-petioled, 

 the petioles scarcely 2 mm. long. The corolla is said to be glabrous 

 externally, the pappus whitish, and the achenes roughish on the 

 upper part of the angles. So far as known to the writer the species 

 has not been subsequently reported. However, specimens have now 

 been collected in the vicinity of Nabon, Ecuador, 25-26 Sept., 

 J. N. Rose, A. Pachano & G. Rose, no. 23,014 (Gr., U. S., N. Y.), 

 which correspond closely in nearly all described features to E. cuter- 

 tense, having the same much-branched habit, small, rovmdish-ovate 

 subcordate, acute to very shortly acuminate leaves, which are similarly 

 erenate on the somewhat revolute margins. The articulated pubes- 

 cence is the same, the inflorescence, and numbers of florets (35), 

 scales (15-16) and pappus bristles (18) fairly approximate those 

 given by Hieronymus. The chief differences observed are as follows: 

 the leaves in the Ecuadorian plant are never really sessile and the 

 petioles are sometimes as much as 4 mm. long; the corolla-teeth are 

 dorsally hispid ; the achenes are hispidulous on the angles throughout 

 their length; and the pappus-bristles are distinctly roseate. These 

 minor differences, however, do not appear sufficient to justify the 

 separation of the Ecuadorian plant, at least until it is possible to have 

 it carefully compared with the type of E. cidervense. It is therefore 

 provisionally referred to that species. 



E. (§ Eximbricata) dasyneurum, spec, no v., herbaceum erectum 

 virgatum ut videtur annuum 6 dm. vel ultra altum; caule tereti 

 densissime piloso, pilis patentibus attenuatis articulatis saepe curva- 



