210 PROCEEDINGS OF THE AMERICAN ACADEMY. 



patentem abrupte contractis. — Tufa bluffs near Tehuacan, Puebla, 

 Mexico, 1680 m. altitude, 7 August, 1901, C. G. Pringle, no. 8585 

 (type, in Gray Herb.) ; in the vicinity of San Luis Tultitlanapa, Puebla, 

 near Oaxaca, August, 1908, C. A. Purpus, no. 3105 (Gray Herb.) and 

 no. 3104 (Gray Herb.). The last-mentioned specimen has the upper 

 leaves closely sessile instead of being provided with the usual very short 

 wingless petioles beneath the auricles, but the plant is otherwise so 

 closely identical that it must be inferred that this variation is merely 

 formal and trifling. The affinity of the species is clearly with M. 

 Pringlel Robinson & Greenman, Proc. Am. Acad, xxxiv. 512 (1899), 

 which, however, has leaves of quite a different type of serration and the 

 involucral bracts of a peculiar obovate-spatulate form. 



Lepidesmia squarrosa Klatt, Bull. Herb. Boiss. iv. 479, t. 7(1896). 

 This species, the type of a newly distinguished as yet monotypic genus, 

 was founded upon a plant collected in dry places at Caimanera, Cuba, 

 by von Eggers, May, 1889 (no. 5439). Dr. Klatt was inclined to regard 

 his genus as being of the Eujyatorieae Ageratinae and very nearly re- 

 lated to Asche?ibomia. Hoffmann in Engl. & Prantl, Nat. Pflanzenf. 

 Nachtr. 321, 322 places Lepidesmia next Ageratum and distinguishes 

 it from that genus chiefly by the more imbricated involucral scales. 

 However, even a cursory inspection of the type of Lepidesmia, as repre- 

 sented by fragments in the herbarium of the late Dr. Klatt, led the 

 writer to believe that the plant could not belong among the Eupatorieae, 

 and a careful dissection has shown that the style-branches, instead of 

 having the clavate unappendaged form found in the Eupatorieae, are 

 divided into a basal rather short thickish and somewhat compressed 

 portion surmounted by a rather elongated attenuate and papillose ap- 

 pendage in the manner of many Heliantheae. In fact, it seems proba- 

 ble that the genus should be placed near Isocarpha R. Br. In habit, 

 as well as in technical characters, it is not very unlike /. oppo- 

 sitifolia R. Br., which also possesses opposite leaves, which are lan- 

 ceolate and subsessile, glomerate heads with subscarious involucre and 

 chaffy receptacle. However, the distinct pappus, much smaller heads, 

 and flattish receptacle furnish ample generic distinctions. 



losTEPHANE TRiLOBATA Hemsl. Biol. Cent. -Am. Bot. ii. 169 (1881). 

 With this species the following appear to be identical : Budbeckia 

 chrysantka (Sch. Bip.) Klatt, Leopoldina, xxiii. 143 (1887), page 3 of 

 reprint, and Echinacea chrysantha Sch. Bip. ace. to Klatt, 1. c. (1887), 

 page 4 of reprint. The species of Schultz Bipontinus seems never to 

 have been described until taken up and transferred to Rudbeclia by 

 Klatt. It rested upon Liebmann's no. 575, collected at Cubre de 

 Estepa, Mexico. In the herbarium of the late Dr. Klatt, a collection 



