260 PROCEEDINGS OF THE AMERICAN ACADEMY. 



lateral veins beneath : inflorescence a terminal leafy hirsnte-pubescent 

 many-headed panicle ; peduncles 6 mm. or less in length, slender ; bracts 

 of the ultimate inflorescences lanceolate to subsetaceous : heads of the 

 staminate Mowers about 5 mm. high and broad, about 25-flowered : involu- 

 cre campanulate, 3-seriate ; bracts of the involucre lanceolate, purplish, 

 the outer acute, the inner longer, obtuse, and more or less scarious on the 

 margins and at the tip : pistillate flowers unknown. — Mexico. State of 

 Oaxaca : in wet ravines, Sierra de San Felipe, altitude 2285 in., 1 1 

 December, 1895, C. G. Pringle, no. 7014 (hb. Gr.). 



In foliar characters B. Pringlei suggests B. oaxacana, Greenm., from 

 which, however, it is easily distinguished by its larger acuminate leaves, 

 many-headed paniculate inflorescence, smaller heads, and finally by the 

 absence of glandular hairs on the stem and in the inflorescence. 



Melampodium Nelsonii, n. sp. Perennial : stems ascending or 

 erect, much-branched, hirsute-pubescent : leaves sessile, linear-lanceolate, 

 1.5 to 5 cm. long, 1 to 4 mm. broad, entire and undivided or pinnately 

 3-cleft into linear divaricately spreading divisions, pubescent above, densely 

 sericeous-villous beneath, revolute-rnargined : peduncles rather slender,* 

 1 to 8 cm. in length, pubescent with spreading hairs : heads including 

 the conspicuous orange-yellow rays 1 to 1.5 cm. in diameter: outer in- 

 volucral bracts herbaceous, ovate-deltoid, gradually narrowed to an acute 

 apex, densely hirsute-pubescent: ray-flowers about 12; rays oblong, 5 to 

 6 mm. long, 3 mm. broad : fruit somewhat quadrangular in cross-section, 

 ribbed on the sides, and more or less tuberculate ; the hood conspicuously 

 developed and usually prolonged into a spirally coiled puberulent appen- 

 dage. — Mexico. State of Michoacan : Volcano of Jorullo, 28 March, 

 1903, E. W. Nelson, no. 6939 (hb. Gr., and hb. U. S. Nat. Mus.). 



The fruit characters place M. Nelsonii in the § Eumelampodium near 

 M. longipes, Rob., from which species, however, Mr. Nelson's plant is 

 readily separated by the distinctly ligneous stem, more numerous ray- 

 flowers, longer rays, and a ribbed fruit. In habit M. Nelsonii assimilates 

 M. heterophyllum, Lag., but differs in having a well-developed hood with 

 an attenuated coiled appendage, narrower leaves, and a more densely 

 pubescent upper leaf-surface. 



Sanvitaliopsis, Schz. Bip. Among Liebmann's plants of Mexico is 

 one which was determined by Schultz Bipoutinus as " Sanvitaliopsis 

 Liebmami." The earliest reference to Sanvitaliopsis appears in Ben- 

 tham and Hooker's Genera Plantarum, where it is mentioned under Zin- 

 nia with the following brief characterization: " Sanvitaliopsis, Schz. 

 Bip. in PI. Liebm. est species habitu Heliopsidis, acheniis tamen 2-arista- 



