APRIL, 1904. PLANTS YUCATAN^E MILLSPAUGH & CHASE. 123 



summit, achene otherwise glabrous pappus of 2 slender awns, the ventral 

 .4-. 5 mm. long, the dorsal often obscured among the marginal hairs. 

 Hab. Roadside in woods, between Ditasand Piste, March 3, 1903, 

 Ccec. et Ed. Seler, 3976, depauperate specimens. 



Spilanthes filipes Greenman Proc. Am. Acad., 35:314. 



Herbaceous:* stems erect or rarely repent at the base,/ra?/y branch- 

 ing from the base, j to 4 dm. high, rather sparsely pubescent with jointed 

 hairs, striate: leaves opposite, petiolate, j> nerved from near the base, ovate 

 to oblong lanceolate, including the petiole 2.5 to 6 cm. long, . 8-2 cm. broad, 

 obtusish, submucronate, crenate-dentate, narrowed rather abruptly, or e.ven 

 attenuate at the base into a ciliated petiole, glabrous or with a few scattered 

 hairs on the upper surface and on the midrib and lateral nerves beneath; 

 heads radiate, 4 to 5 mm. high (elongating at maturity to 6 or 7 mm.), 

 nearly or quite as broad, borne on long slender (5 to 10 cm. \o\\g) pedun- 

 cles which either terminate the stems and branches or spring from the upper 

 axils; involucral scales oblong-ovate, 2 to 2.5 mm. long, slightly acuminate, 

 acute, inconspicuously ciliate; ligules about 5, yellow, including the tubular 

 portion 4 mm. in length, 3 dentate; achenes of ray flowers triangular; 

 flowers of the disk 2.5 mm. long, corollas 5 lobed ; achenes black and 

 shining, laterally compressed bearing two minute very slender pappus awns, 

 .2-. 6 mm. long, achene ciliated on 

 the angles, glabrous or nearly so on 

 each face, at maturity about i mm. in 

 length (.6-7x1.2 mm.); in section 

 biconvex with keeled angles, 

 achenes of ray flowers 3 keeled; 

 receptacle cylindrical, elongated ; 

 palea rounded or subtruncate, usually 

 dentate, at the apex. 



Collected by Dr. G. f. Gaumer in 

 Yucatan, 1896, No. 1122. In general 

 appearance S. filipes most resemble S. 

 ramosa Hemsl., but it differs mate- 

 rially by having much larger leaves, 

 smaller heads and stricter habit. 



Hab. Moist soil of pathway 

 to Cedral, Cozumel, Jan. 5, 1895, 



Millspaugh Armour Exped. 43 {Spilanthes JSeccabunga Field Col. Mus. 

 Bot. 1:53); "Herb, 2 feet high, common in the forests of Buena Vista 

 Xbac, August" Gaumer 1122 (type), Chichankanab 1257, 1465, 2185, 

 Izamal 2302; open grassy places near San Miguel, Cozumel Millspaugh 

 PI. Utowantz 1494 {Spilanthes Beccabunga Ibid. 2:108); Gaumer (1896) 

 in Hb. U. S. Natl. Mus. 



The two specimens from the island of Cozumel, Millspaugh 

 Armour Exped. 43 and Millspaugh PI. Utowance 1494, show decumbent 

 bases, but otherwise no distinction from the erect forms. 



*Dr. Greenman's original description and notes are given in italics, additional description and 

 notes in body type. 



