56 NORTH AMERICAN FLORA [VOLUME 32 
tulose or glabrate, the blades lance-elliptic to broadly elliptic-oval, 4.5-25 cm. long, 2-12 cm. 
wide, obtuse to acuminate at the base, acute or acuminate at the apex, membranaceous, green 
above and glabrous, slightly paler beneath, tomentulose when young but soon glabrous, the 
costa stout and prominent, the lateral veins 6-11 on each side, slender, arcuate, ascending at an 
acute angle; inflorescence terminal, the flowers sessile or subsessile in dense cymes, these ar- 
ranged in a short-pedunculate spike-like panicle 10-25 cm, long, the bractlets linear, brown; 
hypanthium fulvous-tomentose; calyx-lobes 4, triangular, acute or acuminate, erect, shorter 
than the hypanthium, unequal; corolla-tube slender, 6-7 mm. long, thinly floccose-tomen- 
tulose outside, glabrous in the throat, the 4 lobes rounded, undulate, about 1.5 mm. long, 
spreading; anthers and style included; capsule subglobose, about 1.5 mm. in diameter, 
costate; seeds minute, brown. 
TyPE Locality: Alta Verapaz, Guatemala, at an altitude of 1080 meters. 
DISTRIBUTION: Guatemala and Honduras. 
20. Rondeletia laniflora Benth. Pl. Hartw. 85. 1841. 
Arachnothryx laniflora Planch. Fl. Serres 5: 442. 1849. 
Shrub, 2—3 meters high, the branches stout, terete, grayish, closely white-tomentose when 
young; stipules narrowly triangular or subulate, 3-8 mm. long, thick, erect, persistent, white- 
tomentose; leaves opposite, crowded at the ends of the branches, the petioles stout, 4-10 mm. 
long, white-tomentose, the blades obovate to narrowly lance-elliptic, 5.5-13 cm. long, 1-4 cm. 
wide, cuneate to attenuate at the base, long-attenuate or abruptly acuminate at the apex, 
subcoriaceous, dark-green on the upper surface and glabrous, or when young thinly floccose- 
tomentulose, white beneath with a very dense close tomentum, the costa prominent, the lateral 
veins slender, prominent beneath, 7-16 on each side, subarcuate, ascending at an acute angle, 
the secondary veins obsolete; inflorescence terminal, the flowers sessile or nearly so in dense 
short-pedunculate cymes, these arranged in a dense narrow panicle 4~7 cm. long; bractlets 
subulate, tomentose; hypanthium densely white-tomentose; calyx-lobes 4, subequal, oblong, 
obtuse or acutish, spreading, about as long as the hypanthium; corolla-tube slender, 12-15 
mm. long, densely and closely white-tomentose outside, glabrous in the throat, the 4 lobes sub- 
orbicular, undulate, 2-3 mm. long; capsule subglobose, 4-5 mm. long and nearly as broad, 
costate, brown, glabrate; seeds minute, irregular, brown, scrobiculate. 
TYPE LOCALITY: Sierra de las Nubes, Guatemala. 
DISTRIBUTION: Mountains of Chiapas and Guatemala. 
21. Rondeletia Bourgaei Standley, sp. nov. 
dae laniflora Hemsl. Biol. Centr. Am. Bot. 2: 20, in part. 1881. Not R. laniflora Benth. 
Shrub, the branches stout, terete or subangulate, yellowish-brown, densely fulvous-tomen- 
tose when young, glabrate in age; stipules narrowly or broadly triangular, 5-7 mm. long, at- 
tenuate, erect, persistent, thick, brown, fulvous-tomentose or glabrate; leaves opposite, crowded 
at the ends of the branches, the petioles stout, 2-13 mm. long, tomentose, the blades obovate, 
. elliptic, or oblong-elliptic, 6.5-11.5 em. long, 2.2-4 cm. wide, acute or acuminate at the base, 
acute to acuminate at the apex, coriaceous, dark-green on the upper surface, tomentose along 
the veins or finally glabrate, rugulose, beneath densely fulvous-tomentose, the tomentum loose, 
the costa stout and prominent, the lateral veins prominent, 10-13 on each side, arcuate, as- 
cending at an angle of 45°-60°, the secondary veins prominent, reticulate; inflorescence termi- 
nal, the flowers sessile or subsessile in small dense short-pedunculate cymes, these arranged in a 
dense narrow short-pedunculate panicle 6-10 cm. long; bractlets linear, tomentose; hypan- 
thium densely tomentose; calyx-lobes 4, unequal, lance-oblong, 1.5-2 mm. long, acute, re- 
flexed, tomentose outside; corolla not known; capsule subglobose, 4-5 mm. long and nearly as 
broad, smooth, tomentose. 
Type collected at San Cristé6bal, region of Orizaha, Veracruz, Bourgeau 2618 (U.S. Nat. Herb. 
no. 49964). 
