GREENMAN. — MEXICAN PLANTS. 3138 
LAMOUROUXIA TENUIFOLIA, 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. W. Nelson, 10 November, 
1894, no. 1891. Types in herb. Gray and herb. U.S. Nat. Museum. 
ViIBURNUM 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 Mignel del Soldado, Vera Cruz, altitude 1,850 m., 
20 April, 1899, no. 8172 
GALIUM TRIFLORUM, 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 swamps 
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, 1885, no. 279, and described by Dr. Gray, Proc. 
Am. 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. serratulotdes, 
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., 26 September, 1898. 
Coreopsis rhyacophila. Suffrutescent: stems erect, terete, covered 
below 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 em. long: heads 
1 to 1.3 em. high, and including the rays 2.5 to 3 cm. in diameter, few 
on long 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 m., 9 February, 1899, no. 7866. In foliar characters C. r 
