466 PROCEEDINGS OF THE AMERICAN ACADEMY. 
ovate, 5 to 10 mm. long, 1 to 4 mm. broad, acuminate, glabrous or 
slightly hispidulous on the margins, elongate-glandular-punctate beneath, 
and with a cluster of glands below near the tip: flowers brownish purple; 
lobes of the corolla cuspidate-attenuate. — Hep.. vi. 17... @. uropetalum, 
Hemsley, Biol. Cent.-Am. Bot. ii. 66, & v. t. xli. f.7-9. Rubia acumi- 
nata, Mart. & Gal. Bull. Acad. Brux. xi. 1, 127.— Southern Mexico, 
Galeotti, nos. 2631, 2632; Oaxaca, Sierra de San Felipe, altitude 3072 
m., Pringle, no. 4710, vicinity of La Parada, altitude 2300 to 2700 m, 
EE. W. Nelson, no. 1015. 
++ ++ Flowers axillary or mostly terminating the branches in pairs: fruit dis- 
tinctly baccate. 
22. G. Aschenbornii, Scuaver. Perennial, many stemmed 
from the base: stems reclining or ascending, 3 to 5 dm. or more in 
length, glabrous or minutely hispidulous: leaves in fours, linear-oblong 
to elliptic-oblong, occasionally somewhat oblong-lanceolate, 0.5 to 1.0 
em. long, 2 to 5 mm. broad, acute, or cuspidate-acuminate, oblong-pun® 
tate beneath with a large gland or cluster of glands on the lower surface 
near the apex, glabrous or hispidulous on the margins: flowers at least 
in the dried state a greenish yellow; lobes of corolla cuspidate-acumr 
nate: pedicels glabrous, in fruit 2 to 6 mm. in length: mature fruit about 
5 mm. in breadth. — Linnea, xx. 701. G. geminiflorum, Mart. & Gal. 
Bull. Acad. Brux. xi. 1,126; Walp. Rep. vi. 17; Hemsley, Biol. Cent- 
Am. Bot. ii. 64, & v. t. xli. f. 1-3.— Valley of San Luis Potosi, 
Schaffner, no. 841; Zimapan, Th. Coulter, no. 189; Jalisco, volcano of 
Colima, Marcus E. Jones, no. 218; Federal District, under pines, base 
of Sierra de Ajusco, altitude 2460 m., Pringle, no. 6597; Orizaba, 
Miller, no. 1444, Galeotti, no. 2604, and according to Hemsley, Lieb- 
mann, no. 236; Guatemala, Donnell Smith, no 1970, Heyde & Lux, 0% 
3975 (of Donnell Smith’s sets), the latter distributed as Relbuniwm 
hypocarpium, Hemsl., and according to Hemsley, Biol. Cent.-Am. 
l. c., Bernoulli, no. 292. 
* * More or less suffruticose plants, hirsute pubescent throughout: leaves in 
whorls of four to seven. 
+ Stems 5-7-angled. 
23. G. angulosum, Gray. Fruticose: stems 5-7-angled, covered 
below with a grayish bark; branches divaricately spreading, hirsute 
pubescent especially on the angles: leaves in whorls of four to seven, 
linear-oblong or somewhat elliptic-oblong, 6 to 10 mm. long, 2 to 4ne 
_ broad, acute, slightly cuspidate-acuminate, hirsute-pubescent 0M the 
