264 ERICACEAE. (HEATH FAMILY.) 



9. CLETHRA, L. 



Calyx 5-parted, imbricated in the bud. Corolla 5-pctalous. Stamens 10: 

 anthers obcordate, inverted in the bud, opening by terminal pores. Style slen- 

 der, 3-cleft. Capsule 3-celled, 3-valved, many-seeded. Shrubs or small trees. 

 Leaves alternate, oblong or obovate, sen-ate, deciduous. Flowers white, in ter- 

 minal racemes. Stamens and style exserted. 



1. C. alnifolia, L. Shrubby; branches and racemes tomentose ; leaves 

 short-petioled, obovate or wedge-oblong, acute, smooth on both sides ; racemes 

 simple or panicled ; style and filaments smooth ; bracts partly persistent. (C. 

 paniculata, Pursh.) Varies, with the leaves hoary beneath, rough above 

 (C. tomentosa, Lam.), or on both sides (C. scabra, Pers.) ; style hairy; bracts 

 caducous. Swamps, Florida to Mississippi, and northward. July. Shrub 

 4 - 8 high. Leaves 2' - 3' long. Flowers fragrant. 



2. C. acuminata, Michx. Arborescent ; branches and racemes white- 

 tomcntose ; leaves thin, smooth, ovate or ovate-lanceolate, acuminate, on slender 

 petioles ; racemes solitary ; style smooth ; filaments hairy. Mountains of North 

 Carolina. July and Aug. Leaves 3' - 4' long. Bracts caducous. 



10. KALMIA, L. LAUREL. 



Calyx 5-parted. Corolla depressed-campanulate or rotate, 5-lobed, with 10 

 cavities at the sides in which the anthers are lodged. Filaments elastic. Style 

 single. Stigma capitate. Capsule globose, 5-cclled, 5-valved, many-seeded. 

 Shrubs, with entire alternate opposite or whorled evergreen leaves, and showy 

 white or rose-colored flowers. 



* Flowers in corymbs. 



1. K. latifolia, L. (CALICO-BUSH.) Branches smooth; leaves mostly 

 alternate, petioled, elliptical, acute at each end, green on both sides ; corymbs 

 terminal, viscid ; corolla large, varying from white to deep rose-color. Shady 

 banks, Florida, and northward. May and June. Shrub 4- 10 high. Leaves 

 shining. 



2. K. angustifolia, L. (SHEEP LAUREL.) Branches smooth ; leaves 

 petioled, opposite or three in a whorl, narrowly oblong, obtuse, pale or glaucous 

 beneath ; corymbs lateral, glandular ; flowers small, deep rose-color. Barren 

 hills, chiefly in the upper districts. April and May. Shrub 2 -3 high. 

 Leaves and flowers smaller than those of the preceding. 



3. K. cuneata, Michx. Branches pubescent ; leaves sessile, alternate, 

 wedge-oblong, pubescent beneath, bristle -pointed ; corymbs lateral ; flowers 

 white. Swamps, South and North Carolina, not common. A small shrub. 



* * Flowers solitary, axillary. 



4. K. hirsuta, Walt. (WICKY.) Hirsute; stems low, very leafy ; leaves 

 small (' long), oblong or oval, mostly obtuse and alternate, the margins revo- 

 lute ; calyx-lobes leafy ; flowers numerous, approximate, pale or deep rose-color; 

 pedicels slender, longer than the leaves. Flat pine barrens, Florida and Geor- 

 gia. June to Sept. Shrub 6' - 1 8' high. 



