302 ERICACEAE 



septicidally 5-valved; seeds ovoid, with a firm reticulate seed-coat. [Name Greek, meaning 

 Kalmia-like.} 



A monotypic genus of the Siskiyou Mountains, Oregon, a region noted for an unusual number of endemics. 



1. Kalmiopsis Leachiana (Henderson) Rehder. Kalmiopsis. Fig. 3678. 



Rhododendron Leachianum Henderson, Rhodora 33: 205. 1931. 

 Kalmiopsis Leachiana Rehder, Journ. Arnold Arb. 13: 32. pi. 40. 1932. 

 Rhodothamnus Leachianus Copel. f. Amer. Midi. Nat. 30: 565. 1943. 



Low shrub, branching from the base, 15-30 cm. high. Leaves elliptic-obovate, 7-18 mm. 

 long, coriaceous, upper surface glabrous, the lower glandular-dotted, lateral veins indistinct ; 

 bracts oval, 5-6 mm. long; pedicels slender, 10-15 mm. long; calyx-lobes ovate, 3-4 mm. long, 

 reddish purple, minutely ciliolate ; corolla rose-purple, the tube equaling the calyx, lobes rounded, 

 6 mm. long, minutely glandular on the back; capsule subglobose, 4-5 mm. long. 



Mountain slopes, Canadian Zone; Siskiyou Mountains, Curry County, Oregon. May-June. 



6. kAlMIAL. Sp. pi. 391. 1753. 



Erect branching shrubs with coriaceous evergreen foliage and viscid inflorescence. 

 Leaves alternate, opposite or verticillate, coriaceous, dark green above, pallid beneath, 

 entire and generally more or less revolute. Flowers in terminal or lateral, corymbose^ or 

 umbellate clusters, with slender elongated pedicels. Calyx 5-parted, the segments im- 

 bricated in the bud, usually colored, persistent. Corolla saucer-shaped, the tube saccate 

 with 10 keels running from the sacs to the lobes and sinuses, the lobes broad, rounded at 

 apex. Stamens 10, included: filaments filiform or subulate, usually pubescent, elastically 

 straightening from the corolla-sacs at anthesis ; anthers ovoid, opening by terminal pores. 

 Ovary 5-celled ; style slender, nearly straight. Capsule globose or subglobose, 5-valved, 

 subtended by the persistent calyx. [Name in honor of Peter Kalm, a pupil of Linnaeus, 

 who traveled in America.] 



An American genus of 8 known species; besides the following, 5 others occur in eastern North America and 

 one in Cuba. Type species, Kaltnia latifolia L. 



Leaves oval to oblong-oval, less than twice as long as broad; corolla less than 15 mm. broad. 



1. K. nttcrophylla. 



Leaves linear to oblong-linear, over twice as long as broad; corolla over 15 mm. broad. 



2. K. pohfoha occtdentalts. 



1. Kalmia microphylla (Hook.) Heller. Small-leaved Kalmia. Fig. 3679. 



Kalmia glauca y microphylla Hook. FI. Bor. Amer. 2: 41. 1834. 

 Kalmia microphylla Heller, Bull. Torrey Club 25: 581. 1898. 



Low, diffusely branched shrub, 10-20 cm. high, with glabrous or puberulent branchlets. 

 Leaves varying from obovate to broadly oblong, usually oval, 1-2 cm. long, flat or nearly so, 

 subsessile, glabrous and dark green above, pale or glaucescent beneath ; corymbs terminal, few- 

 flowered ; pedicels very slender, mostly 2.5^ cm. long, glabrous; calyx 5-6.5 mm. wide; corolla 

 rose-purple, 8^12 mm. wide ; capsule globose, 5-6 mm. broad, glabrous. 



Moist ground, Boreal Zones; British Columbia and Yukon, south to California, Nevada and Colorado. Type 

 locality: swamps in the Rocky Mountains. June-Aug. 



2. Kalmia polifolia subsp. occidentalis (Small) Abrams. Western Swamp 



Kalmia. Fig. 3680. 



Kalmia occidentalis Small. N. Amer. Fl. 29: 53. 1914. 



Low branching shrub, 10-30 cm. high, with glabrous or puberulent branchlets. Leaves ob- 

 long to oblong-lanceolate or oblong-linear, 15-35 mm. long, flat or usually slightly revolute, 

 glabrous, deep green above, glaucescent beneath, subsessile; corymbs terminal, few- to several- 

 flowered; pedicels 2-3.5 cm. long, glabrous; calyx 8-10 mm. wide, the lobes oblong or ovate; 

 corolla rose-purple, 15-20 mm. wide; capsule globose, 5.5-6.5 mm. wide, glabrous. 



Swamps, Boreal Zones; Alaska, south to Mount Rainier and western Washington. Type locality: "foothills 

 of Mount Rainier, Washington." May-July. Typical K. polifolia Wangenh. {K. glauca Ait.) occurs in north- 

 eastern North America. 



7. PHYLLODOCE Salisb. Parad. Lond. pi. 26. 1806. 



Low depressed, heath-like shrubs. Leaves evergreen, linear, needle-like, alternate and 

 crowded at the ends of the branches. Flowers in umbel-like terminal clusters, arising from 

 persistent herbaceous bracts, long-pedicelled and nodding or suberect. Calyx persistent, 

 4-6-lobed, usually 5-lobed. Corolla ovoid, urceolate or rotate-campanulate, more or less 

 lobed. Stamens 8-12; filaments slender; anthers unappendaged, opening by oblique apical 

 pores. Ovary usually 5-celled, subglobose. Style filiform, slender. Capsule ovoid or sub- 



