EUPATORIUMS OF PERU. 67 



uco: in bushy places at Cassapi, Poeppig, no. 30 (DC, phot. Gr.). 

 Without indication of department: Hacnke, ace. to DC, 1. c.; 

 in Andes of Peru, Wasncr [doubtfully legible], no. 1349 [apparently 

 of the Mathews series] (X. Y.); Mathews, without number (Gr.). 



Forma suaveolens (HBK.) Hieron. in Engl. Bot. Jahrb. xxix. 11 

 (1900), xxviii. 572 (1901), xxxvi. 470 (1905); Robinson, Proc. Am. 

 Acad. liv. 292 (1918). E. suaveolens HBK. Nov. Gen. et Spec. iv. 

 109 (1820). — Cajamarca: near Tambillo, 7 August, 1878, von JelsJci, 

 nos. 692, 742, ace. to Hieron. 1. c. xxxvi. 470. [Ecuad., Colomb., 

 Venez.] 



48. E. GRACiLENTUM Robinson (p. 18). Slender perennial herb 

 3^ dm. or more high; root of a few strong slender lignescent elongated 

 fibres; stems l-several from the base, erect, or at least decumbent, 

 terete, purplish, 1-2 mm. in diameter, sordid-puberulent or -tomen- 

 tellous; internodes 2^11 cm. long; leaves opposite, deltoid-ovate, 

 acute to acuminate, crenate-dentate except at the rounded, truncate 

 or subcordate base, 1.8-3 cm. long, 1.1-2.3 cm. wide, thin, membrana- 

 ceous, softly pubescent above, grayish-tomentose beneath, 3-nerved 

 from the insertion; petiole slender, subterete, gray-pubescent, 4-8 

 mm. long; heads about 25-flowered, 6 mm. long, 3.7 mm. in diameter, 

 borne in loose irregular 1-5-headed cymes at the ends of the spreading 

 branches of an open leafy-bracted panicle; involucre narrowly cam- 

 panulate, scales about 19, about 3-seriate, stramineous, the inner 

 narrowly lance-elliptic, obtuse, smoothish, 2-3-costulate, scarious- 

 margined; the intermediate and outer progressively shorter, ovate- 

 lanceolate, acute to acuminate, brownish-puberulent; corollas prob- 

 ably white, glabrous except at the short limb; proper tube 0.7 

 mm. long, throat slightly enlarged, cylindrical, 2.3 mm. long; 

 style-branches filiform, scarcely at all clavellate, achenes 1.5 mm. 

 long, fuscous-brown, with lighter-colored obscurely hispidulous ribs; 

 pappus-bristles about 27, delicately capillary, white, essentially 

 smooth. — Peru without indication of locality: Mathews (X. Y., 

 phot. Gr.). Like several other specimens of Mathews's Peruvian 

 plants from the herbarium of Meisner, two sheets of this plant, now 

 in the herbarium of the X^ew York Botanical Garden, bear a vellow 

 label in the hand of Meisner, reading merely "Peruvia Matthews, 

 1862." Alexander ISIathews, the well-known collector in Peru (who 

 spelled his name with one t) died in 1841. It has been impossible to 

 get information of any subsequent collector in Peru of this name and 

 it is accordingly inferred that errors have here arisen in the copying 

 of labels, and that these plants were in reality collected by Alexander 

 Mathews about 1835-1840. 



