ERICACEAE (HEATH FAMILY) 633 



1. L. procumbens (L.) Desv. Alpine summits, N..H., Me., and Que. ; and 



in humus, Bay of Fundy, N. S., Nfd., and northw. June, July. (Eurasia.) 



13. KALMIA L. LAUREL (of America) 



Calyx 5-parted. Corolla 5-lobed. Filaments long and thread-form. Capsule 

 globose, 5-celled, many-seeded. Evergreen mostly smooth shrubs, with alter- 

 nate or opposite entire coriaceous leaves, naked buds, and showy flowers. 

 (Dedicated to Peter Kalm, a pupil of Linnaeus, who traveled in America.) 



1. Flowers in simple or clustered naked umbel-like corymbs ; pedicels from th& 

 axils of small and flrm foliaceous persistent bracts; calyx smaller than the 

 pod, persistent ; leaves and branches glabrous, or nearly so. 



1. K. latifblia L. (MOUNTAIN L., CALICO BUSH, SPOON-WOOD.) Leaves 

 mostly alternate, bright green both sides, ovate-lanceolate or oblong, acute at 

 each end, petioled ; corymbs terminal, many-flowered, clammy-pubescent ; 

 flowers 1.5-2.5 cm. broad, pink or white; pod depressed, glandular. Rocky 

 hills and damp soil, N. B. to Ont., and southw. Usually a shrub, but in the 

 ints. from Pa. southw., often tree-like. May-July. 



2. K. angustifblia L. (SHEEP L. , LAMBKILL, WICKY.) Shrub rarely 1 m. 

 high ; leaves commonly opposite or in threes, pale and glabrate underneath, 

 bright green above, narrowly oblong, obtuse, petioled ; corymbs lateral (appearing 

 later than the shoots of the season), slightly glandular, many-flowered; flowers 

 rarely 1 cm. broad, crimson; calyx glandular; pod depressed, nearly smooth ; 

 pedicels recurved in fruit. Hillsides, pastures, and bogs, Lab. to Ont., and 

 southw. June, July. 



3. K. Carolina Small. Similar; leaves permanently pale-puberulent beneath ; 

 calyx puberulent, not glandular. Swamps and woods, Va. to S. C. May, 

 June. 



4. K. polifblia Wang. (PALE L.) Straggling, 1-6 dm. high ; branchlets 2- 

 edged ; leaves opposite, nearly sessile, oblong, white-glaucous beneath, with revo- 

 lute margins; corymbs terminal, few-flowered, smooth; bracts large; flowers 

 1-2 cm. broad, rose-purple ; pod ovoid, smooth. ( K. glauca Ait.) Cold 

 bogs and mts., Lab. to Alaska, s. to N. J., Pa., Mich., Minn., and Cal. May- 

 July. 



2. Flowers scattered, solitary in the axils ; calyx leafy, larger than the pod, 

 nearly equaling the corolla, deciduous ; leaves and branches bristly -hairy. 



5. K. hirsuta Walt. Shrub 2-6 dm. high ; branches terete ; leaves oblong 

 or lanceolate, 0.5-1 cm. long, becoming glabrous; corolla rose-color. Sandy 

 pine barren swamps, Va. to Fla. May- Aug. 



14. PHYLL6DOCE Salisb. 



Corolla 5-toothed. Stamens 10, anthers pointless, shorter than the filaments. 

 Capsule 5-celled, 5-valved, many-seeded. Low alpine heath-like evergreen 

 undershrubs, clothed with crowded linear and obtuse rough-margined leaves. 

 Flowers nodding on solitary or umbeled peduncles at the summit of the 

 branches. Sometimes united with Bryanthus, a Siberian genus with 4-parted 

 umbeled flowers. (Phyllodoce, a sea-nymph mentioned by Virgil.) 



1. P. coerulea (L.) Bab. Calyx pubescent ; corolla cylindric-urn-shaped, 

 5-toothed, purplish, smooth; style included. (Bryanthus taxifolius Gray.) 

 Arctic Am., s. to alpine summits of Me. and N. H. June-Aug. (Eurasia.) 

 Corolla turning bluish in drying. 



15. CASSIOPE D. Don. 



Calyx without bractlets, of 4 or 5 nearly distinct ovate sepals, imbricated in 

 the bud. Corolla open-campanulate, 4-5-lobed or -cleft. Stamens 8 or 10 ; 

 anthers fixed by the apex ; the ovoid cells each opening by a large terminal pore, 



