Part 1, 1914] ERICACEAE 85 
the rachis and pedicels villous-tomentose; calyx 5-6 mm. wide, the lobes ovate, obtuse; corolla 
6-7 mm. long; stamens 2.5~3 mm. long, the filaments villous; berries not seen. 
Tyre Locality: Yavezia, Oaxaca. 
Distrisution: Southern Mexico. 
8, Arbutus Donnell-Smithii Small, sp. nov. 
A shrub with tomentulose twigs; leaf-blades ovate or oval-ovate, 3-6 cm. long, rounded 
or abruptly pointed at the apex, irregularly incised-serrulate, sparingly pubescent above, at 
least when young, tomentulose beneath, mostly truncate or cordate at the base, short:petioled; 
panicles dense, the rachis and branches tomentulose and glandular; calyx 5-6 mm. wide, the 
lobes ovate, often broadly so, obtuse, pubescent and ciliolate; corolla 6-7 mm. long; stamens 
2-2.5 mm. long, the filaments long-villous at the greatly dilated base; berries not seen. 
Type collected at San Lucas, Department of Zacatepequez, Guatemala, April 1890, J. Donnell 
Smith 2190 (herb. Columbia Univ.). 
DistRIBUTION: Guatemala. 
9. Arbutus peninsularis Rose & Goldman, Contr. U. S. Nat. Herb. 
13: 312. 1911. 
A tree, the twigs minutely pubescent; leaves bright-green, the blades ovate to oblong or 
oval, 5-11 cm. long, obtuse or acute, glabrous and often shining above, pubescent, often 
tomentose beneath, entire or serrate, abruptly narrowed, rounded, or subcordate at the base, 
rather short-petioled; panicles stout, about 3 cm. long, or longer in age, the rachis and pedicels 
closely pubescent; calyx 6-7 mm. wide, the lobes broadly ovate to orbicular-ovate, obtuse, 
glabrous or merely ciliolate; corolla 6-7 mm. long; stamens 3.5-4 mm. long, the filaments 
short-villous at the dilated base; berries not seen. 
Type LocaLity: Sierra de la Laguna, Lower California. 
DISTRIBUTION: Lower California. 
10. Arbutus glandulosa Mart. & Gal. Bull. Acad. Brux. 91: 533. 
1842. 
Arbutus densiflora Benth. Pl. Hartw. 15. 1839. Not A. densifora H.B.K. 1819. 
Arbutus villosa Willd.; Klotzsch, Linnaea 24: 72, 1851. 
A tree, the branchlets glandular-hirsute; leaves bright-green, the blades oblong, lanceolate, 
or ovate, or individually oval, 2.5—-8 em. long, acute or abruptly short-acuminate, ciliate or 
ciliate-serrulate, inconspicuously pubescent above, more copiously pubescent beneath, rounded 
or cordate at the base, long-petioled; panicles dense, 2-8 cm. long, the rachis and pedicels 
glandular-hirsute; calyx 5-6 mm. wide, the lobes broadly ovate or deltoid, obtuse or acutish; 
corolla about 8 mm. long; stamens 3-4 mm. long, the filaments villous; berries not seen. 
Typr LocaLiry: Ejutla, Oaxaca. . 
DIstRisvrTion: Middle and southern Mexico. 
DousBtFuL SPECIES 
ARBUTUS ACADIENSIS L. Sp. Pl. 395. 1753. Wholly obscure. 
ARBUTUS XANTHOCARPA Wangenh. Beytr. Nordam. Holz, 30. 1787. 
ARBUTUS MENZIESII ELLIPTICA DC. Prodr. 7: 582. 1839. Mexico. 
ARBUTUS MENZIESII OBLONGIFOLIA DC. Prodr. 7: 582. 1839. Mexico. 
ARBUTUS OvaTA Mart. & Gal. Bull. Acad. Brux. 91: 533. 1842. Mexico. Probably a Gaul- 
theria, 
38. COMAROSTAPHYLIS Zucc. Abh. Akad. Miinch. 2: 331. 
1837. 
Shrubs with erect, diffuse, or prostrate stems. Leaves alternate, persistent, usually 
numerous; blades narrow or sometimes broad, coriaceous, often revolute, entire or toothed, 
petioled. Flowers few or numerous, in terminal solitary or clustered raceme-like panicles. 
Calyx persistent; lobes 5, or rarely 4, much longer than the tube, spreading or reflexed at 
