58 Contributions from the Gray Herbarium 
style apex. ‘Capsule pubescent, emarginate, pendulous.” Seed 
silky-pubescent. Aril with large corneous umbo and two oblong 
vertical appressed lobes half as long as seed. — Brandeg.! Univ. 
Calif. Pub. Bot. iv. 88 (1910). — Pursia: Acatitlan, 1830-2135 
m., June 1909, Purpus 3922 (TYPE COLL.: BG). 
72. P. Parryr A. W. Bennett. Suffruticulose, several-stemmed 
from a creeping woody root, the stems often decumbent below, 
branched, 9 em. long or less, incurved-puberulous, not at all 
canescent. Leaves oval to orbicular, rounded to obtuse at both 
ends, distinctly mucronate, incurved-puberulous, veinless except 
for the midnerve, 6-11 mm. long, 3-10 mm. wide, on petioles 1-1.5 
mm. long. Racemes very short, axillary, 1—4-flowered, flexuous. 
Flowers greenish, 3.6 mm. long. Lower sepals greenish, petaloid, 
narrowly oblong-obovate, obtuse, pubescent down costa and along 
margin with incurved-spreading hairs, 2.8 mm. long, 0.8 mm. wide; 
upper sepal oblong, herbaceous, obtusish, similarly pubescent, 2 
mm. long. Wings obovate, apiculate, 3.5 mm. long, 1.4 mm. wide. 
Keel very blunt, 2.7 mm. long. Upper petals narrowly oblong, 
slightly enlarged toward apex, obtuse, porrect, 3.8 mm. long. Cap- 
sule orbicular, emarginulate, venose, minutely and sparingly in- 
curved-puberulous, 3.5 mm. long and wide. Seed plump, short- 
pubescent, 2.5-2.8 mm. long. Aril 1.5-1.6 mm. deep, with small 
corneous umbo and two oblong scarious descending appressed lat- 
eral lobes 1.2 mm. long. — A. W. Benn.! Journ. Bot. xvii. 140 
(May 1879); in Hemsl. Diag. Pl. Nov. ii. 21 (July 1879); (P. 
Parreyi) Chod. Monog. ii. 39. t. 14. f. 40-42 (1893). — San Luis 
Potosi: 1830-2440 m., 1878, Parry & Palmer 40 (TYPE COLL.: 
BGK); shady places, near San Luis Potosi, Aug.—Oct. 1877, 
Schaffner 6 (GK); without locality, Schaffner 496 (B). —T. 2. 
1G. 
Sect. 3. Huateca, sect. nov. (Anogram.) Sepala herbacea per- 
sistentia; alae petaloideae persistentes; arillus umbone subcorneo 
et lobis duobus lateralibus oblongis subappressis. Species unica 
P. tehuacana Brandegee. 
73. P. TeHuACANA Brandegee. Suffruticulose, very many- 
stemmed from a woody rootstock, the stems erect, more or less 
branched, up to 1.5 dm. high, canescent with a dense spreading- 
ineurved puberulence. Leaves oblong, obtusish at both ends, rather 
densely incurved-spreading-puberulous, 5-10 mm. long, 1,5-2.5 
