STANDLEY—TROPICAL AMERICAN PHANEROGAMS. 209 
Phialanthus macrostemon Standl., sp. nov. 
Branches stout, brownish, roughened by the persistent stipules, the branchlets 
slightly resinous, minutely papillose-scaberulous ; stipule sheath about 2 mm. . 
long; petioles stout, 4 to 5 mm, long, papillose-scaberulous ; leaf blades elliptic- 
oblong or narrowly elliptic, 4 to 5 cm, long, 1.2 to 1.7 em, wide, broadest at or 
near the middle, acute or attenuate at the base, narrowed to the rounded apex, 
rigid-coriaceous, glabrous, the lateral veins obsolete, the costa salient, deep 
green above, lustrous, brownish beneath, the margin thickened, revolute; 
intlorescence few-flowered, short-pedunculate, the flowers sessile or nearly so; 
calyx lobes spatulate, obtuse, at anthesis 1.5 to 2 mm, long, glabrous; corolla, 3.5 
mm. long. the lobes ovate-oval, rounded at the apex, less than half as long #s 
the tube; stamens long-exserted, the anthers exceeding the corolla lobes. 
Type in the herbarium of the New York Botanical Garden, collected at Pinar 
de El Purio, Cabonico, Cuba, September 15, 1917, by J. T. Roig (no. 143). 
Related to Phialanthus rigidus Griseb., a species with narrowly lanceolate 
leaf blades (3 to 8 mm. wide) and very short petioles. All the species of 
Phialanthus are very closely related, and their validity can not be established 
until much more material is obtained. The present plant seems to be quite 
as distinct as the species already described. 
Machaonia coulteri (Hook. f.) Standl. 
Microsplenium coulteri Hook. f. in Benth, & Hook, Gen. Pl. 2: 4. 1873 
Maehaonia fasciculata A, Gray, Proc, Amer, Acad, 19: 77. 18838. 
The genus Microsplenium Hook. f. was referred originally to the fainily 
Caprifoliacene, but, as has been pointed out by other writers, it differs in 
no essential character from Machaonia, Gray’s Machaonia fasciculata was 
founded upon one of the two collections upon which Hooker based the genus 
Microsplenium. 
Chiococca pubescens Standl., sp nov. 
Branches slender, green or grayish, short-pilose when young, the internodes 
shorter than the leaves; stipules 1.5 to 2. mm. long, subulate-cuspidate from 
a broad base; pttioles 2 to 4 mm. long; leaf blades ovate, oblong-ovate, or 
oval-ovate, 8 to 6 ecm. long, 1.2 to 3.2 cm. wide, rounded or obtuse at the base, 
short-acuminate or subacuminate at the apex, chartaceous, green above, sparsely 
short-pilose when young, becoming glabrous, the costa and later al veins promi- 
nulous, paler beneath, densely short-pilose or subtomentose when young, often 
glabrate in age, the costa slender, prominent, the lateral veins prominulous, the 
margin plane or subrevolute; racemes few- flowered, short-pedunculate, the 
pedicels 2 to 4 mm. long, short-pilose, the bracts minute; calyx 2.5 mm. long, 
densely short-pilose, the lobes deltoid, acute; corolla 5 to 6 mm. long, sparsely 
villosulous or glabrate, the lobes triangular-oblong, obtuse, nearly as long as 
the tube: anthers semiexserted ; fruit (immature) about 3 mm. long, compressed, 
short-pilose. 
Type in the U. S. National Herbarium, no. 840975, collected in the vicinity 
of San Luis Tultitlanapa, Puebla, Mexico, July, 1908, by C. A. Purpus (no. 
3334). Also collected in the vicinity of Victoria, Tamaulipas, altitude about 
320 meters, in 1907, by Edward Palmer (no. 156). 
A very distinct plant because of its pubescence, all the others of the genus 
being glabrous or practically so. The type collection was assigned a new 
generic name, fortunately unpublished, by Brandegee. 
Guettarda deamii Standl., sp. nov. 
Tree, 3.5 to 4.5 meters high, the branches blackish, lenticellate, the branch- 
lets stout, densely short-pilose, the internodes short; stipules ovate-oblong, 
