GREENMAN. — MEXICAN PLANTS. 313 



Lamourouxia tencifolia, var. micrantha. Flowers only 1.8 to 

 2 cm. long: calyx cleft (in anthesis) nearly to the base: otherwise like 

 the typical form. — Collected on the west side of Valley of Cuicatlan, 

 Oaxaca, altitude 2,000 to 2,100 m., by E. AY. Nelson, 10 November, 

 1804, no. 1891. Types in herb. Gray and herb. U. S. Nat. Museum. 



Viburnum microcarpum, Cham. & Schl., var. evanescens. Leaves 

 conspicuously discolorous, green and, except for a few scattered stellate 

 hairs on the sunken midrib, glabrous above, white and densely stellate- 

 tomentose beneath : in all other characters corresponding well with 

 the type specimen of the species. — Collected by C. G. Pringle in hedges 

 and thickets at San Miguel del Soldado, Vera Cruz, altitude 1,850 in., 

 20 April 1899, no. 8172. 



Galium triflordm, Michx. Fl. i. 80. This species, hitherto doubt- 

 fully attributed to Mexico, may now be definitely incorporated in the 

 Mexican flora. Specimens were collected by C. G. Pringle in swainps 

 near Jalapa, altitude 1,200 m., 17 April, 1899. no. 8155. 



Vernonia serratuloides, HBK., Nov. Gen. & Sp. iv. 33, t. 316. 

 Specimens collected by Dr. Edward Palmer in . southwestern Chihuahua, 

 August to November, 188.3, no. 279, and described by Dr. Gray, Proc. 

 Atn. Acad. xxi. 393, as Perezia paniculata, prove upon careful examina- 

 tion to be a Vernonia, and moreover, correspond in all essential details 

 with the original description and excellent illustration of V. serratuloides, 

 HBK. Here also may be referred Goldman's no. 156, collected in the 

 Sierra Madre, near Guasarachi on road from Parral to Batopilas, Chi- 

 huahua, altitude 2,000 to 2,100 m., 2G September, 1898. 



Coreopsis rhyacophila. Suffrutescent : stems erect, terete, covered 

 bcdow with a thin grayish brown more or less deciduous cortex: leaves 

 opposite, petiolate, 3 to 8 cm. long, nearly as broad, pinnately tri- or 

 quadri-partite, glabrous upon both surfaces, glandular-punctate, divisions 

 narrowly lanceolate, apiculate-acute ; petioles 1.5 to 3 cm. long : heads 

 1 to 1.3 cm. high, and including the rays 2.5 to 3 cm. in diameter, few 

 on lon°" slender striate naked or 1-3-bracteate peduncles ; involucral 

 scales bi-seriate, the outer shorter, somewhat spreading, linear, acutish, 

 the inner oblong-elliptic, 8 mm. long, half as broad, margins subsca- 

 rious, glabrous except at the apex : rays yellow, longitudinally striate 

 with brownish lines : achenes about 4 mm. long, the outer surface gla- 

 brous, the inner pubescent, margins conspicuously ciliate ; pappus of two 

 stoutish ciliated awns, equalling or slightly exceeding the achene. — Col- 

 lected by C. G. Pringle in lava fields near Cuernavaca, Morelos, altitude 

 2,500 ro,, 9 February, 1899, no. 7866. In foliar characters C. rhyaco- 



