80 Contributions from the Gray Herbarium 
1.4 mm. wide. Seed obovoid-ellipsoid, 1.8 mm. long, appressed- 
pilose. Aril 1.3 mm. long, with small umbo and linear lateral 
lobes. — Griseb.! Cat. Pl. Cub. 13 (1866); Chod. Monog. ii. 150. 
t. 20. f. 34-35 (1893). — Cua: Cachillas de Baracoa, 14 May, and 
San Marcos, 22 August, Wright 1911 (rypE coLtt.: BGK); grassy 
places, barren savannas, 8. E. of Holguin, Oriente, 26-29 Nov. 
1909, Shafer 2943 (G). — T. 2. Fia. 55. — Chodat’s fig. 35 (t. 20) 
does not well represent the seed of this species. 
98. P. sparHuLaTa Griseb. Stems many, herbaceous from a 
woody base, slender, spreading, angulate, minutely roughened on 
the angles, otherwise glabrous, simple or branched, 4-28 cm. long. 
Leaves all in whorls of 4, shorter than the internodes, spatulate- 
obovate, mucronate at the rounded apex, cuneate at base, slightly 
glandular-denticulate on the barely revolute margin, punctate, 1- 
nerved, green and glabrous both sides, 3.5-9 mm. long, 2-6 mm. 
wide, the petioles very short. Racemes terminating stems and 
branches, 4—10-flowered, subsessile or very shortly peduncled; 
bracts persistent, spreading, ovate-attenuate, 0.5 mm. long; pedi- 
cels about 0.2 mm. long. Flowers 2.8 mm. long. Upper sepal oval, 
obtuse, 1.2 mm. long, the lower ovate, obtusish, 1 mm. long, each 
bearing 2-3 pairs of pedicelled glands on margin, glandular-lineate 
on back. Wings obovate-oblong, whitish, green-veined, acutish, 
short-clawed, 2.8 mm. long, 1.3 mm. wide, bearing a few micro- 
scopic cilia on margin, obscurely glandular-lineate on back. Keel 
2.5 mm. long; crest of 3 pairs of simple or 2-3-fid oblong lobes. 
Upper petals oval, undulate at apex, 2mm. long. Capsule elliptic, 
2 mm. long, 1.3 mm. wide. Seed 2.1 mm. long, appressed subsilky- 
pilose. Aril 1.3 mm. long; umbo very minute; lateral lobes oblong, 
rounded at tip, appressed, scarious. — Griseb.! Cat.' Pl. Cub. 18 
(1866); Chod. Monog. ii. 134. t. 20. f. 8-10 (1893). — CuBA: 
banks among tall grass in savannas, San Juan de Buenavista, 
Wright 1910 (rypr cotLt.: BGK); open places, Baracoa, Oriente, 
Feb.—Mar. 1910, Shafer 3989 (G). Banamas: Northrop 402 (K); 
Britton & Millspaugh 3130 (K); Great Bahama: Eight Mile 
Rocks, Feb. 1905, Britton & Millspaugh 2369 (G).—T. 2. Fie. 56. 
99. P. crucIANELLOES DC. Stem slender, erect, branched 
above, angled, slightly puberulous, 1.5-2.5 dm. high, the branches 
often opposite. Leaves mostly in whorls of 5, rhomboidal, angled, 
revolute, glabrous, eglandulose, scarcely mucronate, 6-7 mm. long, 
