GREENMAN. — NEW ANGIOSPERMS FROM MEXICO. 109 



Spilanthes macrophylla. Stems erect or nearly so, 2.5 to 6 dm. 

 high, striate, sparingly pubescent with spreading hirsute hairs, glabrate : 

 leaves opposite, petiolate, ovate-lanceolate, 5 to 15 cm. long including the 

 petiole, 1.5 to 4 cm. wide, acuminate, acute, entire to rather conspicuously 

 sinuate-dentate, narrowed at the base into a slender ciliate petiole, 

 glabrous on both surfaces or with a few scattered hirsute hairs on the 

 midrib and veins beneath, membranous : heads radiate, 8 to 10 mm. high, 

 on long axillary and terminal somewhat sulcate sparingly subappressed- 

 hirsute 2 to 15 cm. long peduncles : involucre, 2-seriate ; scales of the 

 involucre linear-lanceolate, 4 to 7 mm. long, acute, externally hirsute- 

 pubescent : ray-flowers about 10 ; rays yellow: disk-flowers numerous: 

 achenes about 2 mm. long, bearing two slender pappus-awns, ciliate on 

 the margins, sparingly appressed-pubescent on both surfaces. — Costa 

 Rica. Bord du Rio del Volcan, 2 February, 1891, H. Pittier, no. 3717 

 (hb. Gr.) ; Salutre de San Murios, altitude 1355 m., Ad. Tonduz, no. 

 7831 (hb. Gr.) ; Alto del Sacatse, Cerro de Buena Vista, January, 1897, 

 H. Pittier, no. 10,546 (hb. Gr., and lib. Inst. Phys.-Geog. Cost. RL). 

 Pittier s no. 3717 and Tonduz 's no. 7831, both of the Pittier and Dur- 

 and, " Plantce costaricensis exiccatce" were referred by Klatt to Spilan- 

 thes Mutisii, II BK., a South American species from which, however, the 

 Costa Rican plant differs materially in the character of the involucral 

 scales. 



Spilanthes urens, Jacq. Am. Stirp. 214, t. 12G, f. 1 ; HBK. Nov. 

 Gen. & Sp. iv. 211; DC. Prodr. v. 625. Specimens collected at 

 Altata, State of Sinaloa, Mexico, by Dr. J. N. Rose, 15 June, 1897, 

 without number (hb. Gr., and hb. U. S. Nat. Mus.), accord in all impor- 

 tant details with the above maritime species, which has not been recorded 

 hitherto from Mexico. 



Encelia adenophora. Stout herb, 1 to 2.5 m. high, pubescent 

 throughout with stipitate glands intermixed with horizontally spreading 

 hirsute hairs : lower leaves opposite, petiolate, ovate to deltoid-ovate, 

 .5 to 12 cm. loug, 3 to 10 cm. broad, more or less acuminate, acute, 

 rather coarsely and somewhat unequally dentate, 3-nerved from or just 

 above the base; petioles 6 cm. or less in length, naked; upper leaves 

 gradually smaller, shorter-petioled, becoming lanceolate-oblong, more 

 acuminate and remotely dentate to subentire : inflorescence a >ubcorym- 

 bose, or paniculate cyme; peduncles 0.5 to 7 cm. long: heads 12 to 17 

 nun. high, 1.5 to 2.5 cm. in diameter: involucre campanulate : bracts of 

 tin involucre lance attenuate, 10 to 12 mm. long, Bubequal Or the outer 

 bracts slightly exceeding the inner: ray-flowers about 12; rays pale 



