6 NORTH AMERICAN FLORA [VorumE 29 
8. Clethra quercifolia Lindl. Bot. Reg. 28: gl. 23. 1842. 
Clethra obo ata H. & A. Bot. Beech. Voy. 302. 1837. Not C. obovata R. & P. 1834. 
? Kowalewskia serrulata Turcz. Bull. Soc. Nat. Mosc. 321: 264. 18 
? Clethra serrulata Turez. Bull. Soc. Nat. Mosc. 362: 233. 1863. 
A large shrub, with stout finely tomentulose twigs. Leaves coriaceous, obovate to 
elliptic, 6-16 cm. long, 4-10 cm. wide, strongly veined, the veins widely spreading, rather 
coarsely and sharply serrate, or some of them subentire, acute or obtuse at the apex, narrowed 
or obtuse at the base, loosely stellate-pubescent or becoming glabrous above, densely brownish- 
tomentulose beneath, the stout tomentulose petioles 1-3 cm. long; racemes 3-7, stout, tomen- 
tose, 10-17 cm. long; pedicels stout, tomentose, 1.5-4 mm. long; bracts linear, as long as the 
pedicels or longer; calyx tomentulose, 4-4.5 mm. long, its segments ovate, acutish or obtuse; 
petals obovate, denticulate and ciliate, somewhat longer than the calyx; ovary densely villous; 
style about 3 mm. long; stigma 3-lobed. 
TYPE LocaLity: Jalapa, Vera Cruz. 
DIstRiBuTION: Vera Cruz, Morelos, and Federal District. 
ILLUSTRATION: Bot. Reg. 28: pl. 23. 
9. Clethra Rosei Britton, sp. nov. 
Young twigs and petioles short-villous. Leaves oblong, chartaceous, 11 em. long or less, 
2.5-4 cm. wide, sharply serrate or some of them entire, acute or acutish at the apex, narrowed 
or subcuneate at the base, finely and loosely pubescent above, densely tomentose and pale 
beneath, the lateral veins ascending, the stout petioles 8-12 mm. long; racemes few, short- 
villous, 10-12 cm. long; pedicels rather slender, 3-5 mm. long; fruiting calyx about 3 mm, 
long, its segments ovate, acute, distinctly several-nerved; capsule finely pubescent, about 3 
mun, broad; style 2 mm. long. 
Type collected near Colomas, foothills of the Sierra Madre, Sinaloa, July 13-20, 1897, J. N. 
Rose 3226 (U.S. Nat. Herb.). 
10. Clethra occidentalis (I,.) Steud. (Nom. Bot. Phan. 207, as 
synonym. 1821.) 
Tinus occidentalis L,. Syst. Nat. ed. 10.1010. 1759. 
Tinus Volkameria Crantz, Inst. 2: 376. 1766. 
Clethra trifolia Sw. Prodr. 74. 1788. 
Clethra tinifolia Sw. Fi. Ind. Occ. 845. 1800. 
A tree up to 18 m. high, or sometimes a shrub; the rather slender twigs brown-tomentose. 
Leaves oblong or elliptic to oblong-obovate, subcoriaceous, entire or sparingly low-denticulate, 
2 dm. long or less, 3-9 cm. wide, glabrous, or nearly so, and dark-green above, densely white- 
tomentulose or gray-tomentulose, and brown-tomentulose on the veins, beneath, the tomen- 
tose petioles 6-20 mmm. long; racemes several, 6-18 cm. long, tomentose; pedicels 2.5~6 mm. 
long; calyx 3-4 :imm. long, tomentulose, its segments ovate or oblong-ovate, obtuse or obtusish; 
bracts linear, about as long as the pedicels or shorter; petals obovate, entire or nearly so, 
equaling or a little longer than the calyx; style about 2.5 mm. long; capsule depressed-glohose, 
bluntly 3-lobed, densely pubescent, about 3.5 mm. in diameter. 
TyPE Locality: Jamaica [Sixteen-mile Walk]. 
DISTRIBUTION: Jamaica; recorded from Mexico, probably erroneously. 
ILLUSTRATIONS: Sloane, Hist. Jam. pl. 198, f. 2; P. Br. Hist. Jam. gl. 21, f. 1. 
11. Clethra Hartwegi Britton, sp. nov. 
Twigs rather stout, tomentose when young. Leaves oblong to obovate-oblong, coriaceous, 
entire or somewhat undulate-dentate, 10-12 em. long, 3.5—5 cm. wide, obtuse or acutish at the 
apex, narrowed or obtuse at the base, finely pubescent above, at least on the veins, or becoming 
glabrous, densely tomentulose beneath and brownish-tomentose on the veins, the tomentose 
petioles stout, 1.5 cm. long; racemes few, loosely brown-tomentose, 8-12 cm. long; pedicels 
3-5 mm. long; calyx about 4 mm. long, tomentulose, its segments oblong-ovate, obtuse; petals 
slightly longer than the calyx, denticulate; style about 2.5 mm. long. 
Type collected in the cold region near Bolafios, Colotlan, Jalisco, Hartweg 341 (herb. N. Y. Bot. 
Gard.). 
