BLAKE—NEW PLANTS FROM VENEZUELA, 521 
long; leaves linear-lanceolate, 2.5 to 4 em, long, 3 to 5 mm, wide, acuminate to: 
an obtusish apex, sessile, 1-nerved (the costa impressed above, prominulous be- 
neath), erect, scarcely revolute-margined, the lower marcescent, the uppermost 
pair usually abruptly reduced; peduncle terminal, 4.5 em. long or less, bearing 
a single dichotomous capitate cyme about 1.5 em. high and 1 to 1.8 em. thick; 
bracts ovate, the outermost about 8 mm. long; pedicels becoming 6 mm. long or 
less; sepals 5, oblong or ovate-oblong, 7.5 mm. long, 2 to 2.56 mm. wide, obtuse or 
acutish, apiculate, about 3-nerved, herbaceous, the inner with somewhat erose 
hyaline margin, densely spreading-pilose with several-celled, usually gland-tipped 
hairs; petals white, cuneate, emarginate, 11 mm. long. 4 mm. wide, marcescent ; 
stamens 10, the filaments glabrous, becoming 5 mm. long; ovary subglobose, 
miny-ovuled; styles 5 or sometimes 6; capsule subcylindric, 7 mm. long, about 
2.5 mm. thick, 5-valved, the valves bifid, the teeth revolute; seeds (immature) 
pale brown, irregularly roughened, about 0.6 mm. long. 
Type in the U. S. National Herbarium, no, 1,069,159, collected on the Pairamo 
de Timotes, Mérida, Venezuela; altitude 4,200 meters, September 4, 1921, by 
Alfredo Jahn (no. 581). Also collected by Dr. Jahn (no. 66) at the same 
locality, altitude 4,000 meters, December 6, 1910. 
Related to Cerastium kunthii Brig. (C. glutinoswn H. B. K., non Fries) and 
C. venezuelanum Briq., but distinguished from both, according to description, by 
its closely capitate inflorescence, in addition to minor differences in floral de- 
tails. The dense hairs clothing the stem and leaves are brownish, about 0.2 to 
0.5 mm. long, and lack glandular tips; those of the sterile shoots are in part 
white and as much as 1 mm. long. 
Arenaria jahnii Blake, sp. nov. 
Densely cespitose, procumbent perennial, the stems branching, 2 to 6 cm. long, 
slender, densely leafy, glabrous or slightly glandular-papillose in the grooves; 
leaves narrowly elliptic-lanceolate or lanceolate, 4 to 6 mm. long, 1 to 1.38 mm. 
wide, acuminate and submucronate, sessile and shortly connate at base and there 
somewhat puberulous, somewhat revolute-margined, fleshy, pale green, 1-nerved, 
glabrous or sparsely ciliate at base; peduncles solitary, terminal, becoming 
pseudo-axillary, 1-flowered, puberulous toward apex, 5 to 8 mm, long; 
sepals 5, oblong-ovate, 4 mm. long, acutish or obtusish, mucronulate, rather 
fleshy, narrowly thin-margined, glabrous, 1-nerved and with 1 or 2 pairs of 
weak lateral veins; petals 5, white, oblong, 3.5 mm. long, obtuse, entire; sta- 
mens 10, alternately unequal, the longer equaling the sepals; ovary globose ; 
styles 3, equaling the ovary. 
Type in the U. S, National Herbarium, no. 1,069,165, eollected on the Paramo 
de la Sal, Mérida, Venezuela, altitude 3,400 meters, September 2. 1921, by 
Alfredo Jahn (no. 625). 
Arenaria serpens H. B. K., apparently the closest relative of A. jahnii, is 
easily distinguished by its conspicuously ciliolate leaves. 
Drymaria paramorum Blake, sp. nov. 
Base not seen; stems apparently procumbent, about 25 em. long, slender, 
glabrous; internodes mostly 6 to 17 mm. long; leaves opposite; stipules lacer- 
ate, about 1 mm. long; petioles 1 to 3 mm. long, pilose with several-celled 
hairs: blades suborbicular-ovate, 6 to 10 mm. long, 5 to 8 mm. wide, obtuse or 
acutish, mucronulate, at base subcordate or truncate-rounded, submembranous, 
above sparsely pilose with loose several-celled hairs, beneath somewhat paler 
green, more densely pilose, ciliate, quintuplinerved ; flowers 3 to 5, in a usually 
dichotomous terminal cyme; bracts ovate, 1.5 to 2. mm. long, obtuse, scarious, 
somewhat pilose; pedicels 2.5 to 4 mm. long, becoming deflexed, sparsely short- 
pilose; sepals 5, oval, rounded or very obtuse, the 2 outer 3.5.mm. long, green 
