JOHNSTON. — NEW PLANTS FROM VENEZUELAN ISLANDS. 693 
ovary glabrous, ellipsoidal, at least 1.8 cm. long. — El Valle, South hill, 
Johnston, no. 65, Aug. 31, 1903 
Cereus margaritensis, n. sp. Stem columnar, erect, 5 to 8 m. 
high, branching 1 to 2 m. from ground; branches ascending, usually 
8-angled, clothed with a thin gray waxy coat; areolae oval or circular, 
about 6 mm. across, scarcely 1.5 cm. apart, with 11 short spines and a 
central longer one, the lower ones a little longer than the upper; often a 
few more small spines on the upper side which usually possesses a small 
brown woolly cushion; middle and lower part of areolae usually desti- 
tute of wool; central and lower spines recurved, longest almost 2 em. 
long; all bulbous at base, and flattened horizontally: flower about 6 cm. 
long: calyx-tube slender, its lower part with few scales, and destitute 
of wool and spines; lobes broadened at top, acute or .acutish: corolla 
lobes narrow, acute: fruit ellipsoidal, narrow at each end, glabrous or 
with few scales. —E] Valle, on the hillside, Johnston, no. 344, July 27, 
1908. Allied to C. candelabrum, Web., and to C. eburneus, Salm. 
Blakea monticola, n. sp. ($ Pyxipantua.) Shrub 1 to 2 m. 
high, branching copiously: leaves alternate, obovate, 4 to 7 cm. long, 
2 to 5 cm. wide, 5 main nerves, with inconspicuous cross nerves, which 
average 1 mm. apart, entire, with apex abruptly acute or with a blunt 
point and with base cuneate, on both sides minutely punctate; petiole 0.75 
to 1.75 em. long; inflorescence axillary, solitary; pedicels about 2 cm. 
long: bud globose, glabrate, minutely apiculate: bracts 4, decussate, outer 
ones 13 mm. long, inner 10 mm., orbicular, slightly apiculate: calyx 
8 mm. long, slightly sinuate-lobed: corolla white; petals 6, orbicular, 
12 mm. long: stamens 12; anthers biporous, produced into a subulate 
appendage: style 12° mm. long; stigma minute. — Abundant on the 
exposed top of San Juan mt., altitude 700 to 795 m., Johnston, no. 51, 
July 6, 1903. Differs from B. Schdimii, Triana, in its smaller leaves and 
shorter petioles. : 
Jacquinia petiolata, n.sp. Shrub 5 m. high: leaves fasciculate, 
1 to 4 in a fascicle, obovate, puberulent when young, glabrate when 
older; apex rounded, obtuse, or emarginate; base cuneate, continuing 
into petiole; midrib conspicuous; lateral veins plain, nearly parallel, 
arched and connecting near margin, which is slightly or not at all revo- 
lute; new leaves 1.5 cm. wide and 2 em. long, older ones often 3'om. 
wide and 4 cm. long; petiole 5 to 7 mm. long, puberulent: inflorescence 
axillary or terminal, fasciculate, 1 to 3 flowers in a fascicle; pedicel 
about 4 mm. long, whitish pubescent as all the new parts: calyx 5-lobed 5 
lobes orbicular; margin slightly crenate: corolla white ; petals elliptical, 
* 
