44 PROCEEDINGS OF THE AMERICAN ACADEMY. 



pedunculate, about 1 cm. high, 1.5 to 2 cm. broad, terminating the stem 

 and branches and either solitary or in few-headed paniculate-cymes : 

 outer involucral bracts few, herbaceous, slightly spreading ; inner bracts 

 of the involucre oblong, 6 mm. long, 2 to 2.5 mm. broad, obtuse : ra}- 

 flowers few, five or six, fertile ; rays with a short sparingly pubescent 

 tube and a broad-oblong expanded portion, 6 mm. long and nearly as 

 broad : disk-flowers about 12 ; achenes, as well as those of the ray- 

 flowers, oblong, strongly obcompressed, destitute of pappus, glabrous. — 

 Mexico. State of Durango-. 16 August, 1897, Dr. J. N. Rose, no. 2344 

 (hb. Gr., and hb. U. S. Nat. Mus.). State of Jalisco: on dry rocky 

 mountains near Etzatlan, 2 October, 1903, C. G. Pringle, no. 8781 

 (hb. Gr.). 



In habit Coreopsis cuneifolia suggests C. petrophiloides, Rob. & 

 Greenm., from which it is amply distinct in the character of the 

 foliage, the pubescent branches, and in the glabrous epappose achenes. 

 In the technical characters of the head C. cuneifolia is more nearly re- 

 lated to C. mexicana, Hemsl. (Plectra mexicana, DC), but is readily 

 separated by the cuneate or oblanceolate-cuueate leaves, by the pubescent 

 branchlets, etc. 



Leptosyne auizonica. Gray, var. filiforinis. n. var. Glabrous 

 throughout : leaves 3-5-parted ; segments filiform, 8 cm. or less in 

 length. — Mexico. State of Sinaloa : Sierra de Choix, 80 km. N. E. 

 of Choix, 15 October, 1898, jE. A, GoldniMi, no. 258 (hb. Gr., and 

 hb. U. S. Nat. Mus.). Aside from the filiform attenuated leaf-segments 

 no important characters are observed separating the variety from typical 

 representatives of the species. 



Leptosyne pinnata, Rob., var. integrifolia, n. var. Leaves 

 simple, undivided, entire or crenulate: pappus evident, coroniform, often 

 of several short unequal more or less lacerated scales. — ]\Ii:xico. State 

 of Durango: near el Salto, 12 July, 1898, K W. Neisun, no. 4580. 

 Mr. Nelson's plant at first glance seems very different from the type- 

 specimen of Leptosyne 2)innata ; but aside from the characters enumer- 

 ated, namely, the entirety of the leaves and the fairly well developed 

 pappus, there are no further differences. 



BiDENS ludens, Gray, Proc. Am. Acad. xxi. 390. This species 

 was founded on Pringle's no. 293 collected on hills and plains near the 

 City of Chihuahua, Mexico, in October of 1885. The i)rinted label ac- 

 companying this plant in the Gray Herbarium bears the name " Leptosyne 

 Arizo7iicus, Gray." The unfortunate confusion of names probably 

 resulted either in reporting the collection or in printing the labels. The 



