GREENMAN. — GENUS GALIUM. 463 



•w. ++ Flowers perfect or polygamo-monoeeious, purplish, 



13. G. Rothrockii, Gray. Stems several from a woody base, 

 profusely branched, hirtellous-pubescent below and on the young shoots, 

 glabrous above, rarely glabrous throughout: leaves linear, O.o to 1.5 cm. 

 long, rather rigid, acute or short-acuminate, subpungent-tipped, glabrous 

 or somewhat hirtellous : lobes of corolla acuminate : fruit rather spar- 

 ingly hirsute. — Proc. Am. Acad. xvii. 203 (excluding Rusby's plant), 

 & Syn. Fl. N. A. i. pt. 2, 39. — Arizona, Rothroch, no. 675, Lemmon, nos. 

 526, 3010, 2718 ; Lower California, Orcutt,uo. 912 ; Sonora, Wright^uo. 

 1113 in part; Chihuahua, Pringle, no. 661. 



14. G-. "Wrightii, Gray. Hirsute-pubescent throughout: stems 

 about 3 dm. high, rising from a woody base, profusely branched above : 

 leaves linear to linear-oblong, 0.5 to 1.5 cm. long, 1 to 3 mm. broad, 

 obtusish to mucronate-acuminate : corolla brownish purple ; lobes mucron- 

 ate-acuminate: fruit more densely hirsute than in the preceding species. — 

 PI. Wright, i. 80, ii. 67 in part, & Syn. Fl. N. A. i. pt. 2, 39. — Arizona, 

 Apache Pass, Lemmon, no. 615, near Fort Huachuca, nos. 2902, 3011-2; 

 New Mexico, Wright, nos. 421, 235 (type) ; Sonora, Wrighf, no. 1113 in 

 part. 



Var. latifolium, Rob. & Fern. Much less pubescent than in the 

 species proper : leaves linear-oblong to elliptic-oblong, slightly narrowed 

 toward the base, 0.5 to 1.5 cm. long, 1 to 5 mm. broad. — Proc. Am. 

 Acad. XXX. 116. — Sonora, Hartman, no. 58. 



* * Leaves linear-lanceolate to ovate-acuminate, lateral nerves absent. 



15. G. stellatum, Kellogg. Suffruticose, 2 to 6 dm. high : stems 

 covered with a light gray or yellowish bark ; branchlets hirtellous 

 ^r hispidulous : leaves rather rigid, 0.5 to 1.5 cm. long, 1 to 5 mm. 

 broad, usually attenuate-acuminate, sometimes ovate, merely acute : 

 flowers white : fruit densely pilose-hirsute ; hairs in length exceeding the 

 diameter of the fruit. — Proc. Cal. Acad. ii. 97, f. 26 ; Gray, Syn. Fl. N. A. 

 i. pt. 2, 40. G. acutissimum, Gray, Proc. Am. Acad. vii. 350, not of East- 

 wood, Proc. Cal. Acad. vi. 292 (1896). —" Between the Rio del Norte 

 and New Mexico," Dr. Newberry ; Southern Utah, Santa Clara, Palmer, 

 no. 86; Arizona, Camp Grant, 27 April, 1867, Palmer, no. 105, rocky 

 canons of the Santa Catalina Mts., altitude 770 to 1085 m.. 19 April, 

 1881, Pringle, Santa Cruz, Parish, no. 76, Wickenburg, Palmer, no. 

 616 ; Southern California, Parish, nos. 1724, 2381, Colorado Desert, 

 San Diego Co., Orcutt (without number), Panamint Mountains, Coville 

 & Funston, no. 715; Lower California, Los Angeles Bay, Gulf of Cali- 

 fornia, November, 1887. Palmer, nos. 525, 525^^, 526. 



