Blake Revision of Poly gala 91 



113. P. glochidiata HBK. Very slender annual, usually freely 

 branched, 3.2 dm. high or less, the stem scarcely angled, finely 

 pedicellate-glandular. Leaves verticillate in 5's to middle of stem 

 or above it; the lowest lance-obovate, acute at each end, cuspidate, 

 3-4.5 mm. long, 1 mm. wide; middle and upper linear or linear- 

 lanceolate, acuminate at each end, subsessile, cuspidate, slightly 

 revolute, 5-12.5 mm. long, 0.5-1.5 mm. wide; those of branches 

 alternate, smaller. Racemes rather loosely many-flowered, cylin- 

 dric, 1.3-(at length)8 cm. long, 4.5-6 mm. thick, on peduncles 1-4 

 cm. long; pedicels 0.6-0.8 mm. long. Flowers rosy-purple or rarely 

 white, 2-2.3 mm. long. Upper sepal elliptic, obtuse, pinkish (rarely 

 whitish), 1.2 mm. long; lower sepals oblong, obtuse, pinkish (rarely 

 whitish) 0.9 mm. long. Wings obovate-oval, short-cuneate at base, 

 rounded at apex, 3-nerved, 2.3-2.5 mm. long, 1.3 mm. wide. Keel 

 2.1 mm. long; crest of 3-4 pairs of lobes, the posterior obliquely 

 lanceolate, obtuse, the 2-3 outer linear-lanceolate to linear. Upper 

 petals oblong-ovate, obtuse, 1.8 mm. long. Capsule elliptic, 1.5 

 mm. long, 1 mm. wide. Seed 1.1 mm. long, clothed with incurved 

 uncinate-tipped hairs (spreading when wet). Aril obsolete. 

 HBK. Nov. Gen. v. 400 (1821); Chod. Monog. ii. 164. t. 21. f. 

 15-16 (1893). (?) P. uncinata C. Wr. ex Millsp. Field Col. Mus. 

 Pub. Bot. i. 429 (1900). Two color forms may be recognized. 



Forma typica. Flores purpurei. Lower California: Canon 

 Honda, 21 Oct. 1893, Brandegee (G). Sonora: Puerta de Los 

 Pinitos, 1750 m., 14 Oct. 1890, Hainan 14.(BGK) ; Alamos, Sept. 

 1890, Palmer 743 (GK). Sinaloa: Cerro de Pinal, Dec. 1848, 

 Seemann 1519 p. p. (K). Zacatecas: Coulter 727 (K). San Luis 

 Potosi: sandy places near Morales, Aug. 1877, Schaffner 1 (G). 

 Jalisco: Rio Blanco, Sept. 1886, Palmer 546 (BGK) ; plains of 

 Guadalajara, 26 Nov. 1888, Pringle 1808 (BGK) ; gravelly plains 

 of Guadalajara, 1525 m., 8 Oct. 1903, Pringle 11378 (GK). Vera 

 Cruz: Vera Cruz to Orizaba, F. Mueller 890 (K); Protrero de 

 Consoquitla, Aug. 1841, Liebmann (K); Orizaba, Botteri 820 (BK), 

 1120 (G). Western Mexico: Seemann (K). Guatemala: grassy 

 places, Llano de la Laguna de Ayarces, July 1870, Bernoulli 696 

 (K); crevices of rocks, Volcan Viejo, 1220 m.J Feb. 1838, Barclay 

 2123(B). Cuba: Wright 1905 (BGK), 1907 (GK). T. 2. Fig. 67. 



Forma leucantha. Alae albae costa viridi, sepalis viridibus albo- 

 marginatis. Chiapas: Sierra de Tonala, Sept. 1913, Purpus 

 6645 (type coll.: BG). 



