Rhododendron. ERICACEAE. 457 



anthers are severally lodged. Stamens 10: filaments filiform: anthers opening hy 



a terminal hole or cliink. Stylo slender : stigma depressed. Capsule globular, 



septicidally r)-valvod : the placenta) pendulous. Seeds slender. — Evergreen shrubs ; 



with entire coriaceous leaves, either opposite or alternate, and showy llowers mostly 



in an umbel or corymb ; the pedicels subtended by coriaceous ami persistent bracts. 



Tlifi Kalmiag arc all American and of tho eastern side of the continent, excciiting tlic following, 

 which ranges northward from Newfoundland to Alaska, and southward on high mountains. 



1. K. glauca, Linn. Shrub spreading, from a span to 2 feet high, veiy glabrous, 

 with Hat ascending branches : leavbs opposite or sometiiues whorled in threes, 

 nearly sessile, narrowly oblong or appearing linear when the margins are revolute, 

 white and glaucous beneath : corymb terminal, of several or few flowers, tho lower 

 bracts resembling the leaves : pedicels filiform : corolla lilac or chocolate-purple, 

 half an inch in diameter. — Ait. Kew. ii. t. 8 ; Bot. Mag. t. 177. 



Siena Nevada ; on Mount Dana, at and above 11,000 feet, in marshy places, Breioer. Also 

 Webber Peak, Lcmmon. Only tho var. microphi/lla, Hook., i. c. a dcpaunerato state, rising 

 littlo above tho ground. Mr. Wntson found it on similar liigi» nioiuitains \n Nevada. It extends 

 to the .lubarctic regions, and south to lat, 41° in tho Atlantic States. 



9. MENZIESIA, Smith. 

 Calyx small or minute, mostly 4-parted or toothed, glandular-ciliate. Corolla 

 from globular-urnshaped to campanulate, obtusely lobcd. Stamens mostly 8, 

 included : filaments flat : anthers rather short, naked : tho cells opening at top by 

 an obli(iue poro or chink. Style slender : stigma ca[)itate-truncate. Capsule glob- 

 ular or ovoid, mostly 4cellcd and 4-valved, septicidal. Seeds numerous, scobiform 

 (like fine sawdust), the coat being very loose. — Deciduous-leaved shrubs (unequally 

 divided between Japan and N. America) ; the foliage resembling that of Azaleas ; 

 the small flowers in terminal umbels (sometimes becoming lateral), developed simul- 

 taneously with the leaves, from separate scaly buds ; their thin-scarious scales or 

 bracts early deciduous. 



1. M. ferruginea, Smith. Loosely branched shrub, 2 to 5 feet high : loaves 

 disposed to be crowdetl at the end of tho branches, thin, short-petioled, oblong- 

 obovate, entire, acute and with a callous gland-like mucronato tip, more or less hir- 

 sute with rusty hairs and some chaffy bri.stles, especially on tho midrib and margins ; 

 branchlets and pedicels also glandular : corolla purplish or greenish, short-campanu- 

 lato with at first tho mouth contracted. — Ic. Ined. t. 36. 



Woods of Oregon and northward : doubtless in the northwestern part of California, but not yet 

 seen : extends eastwanl nearly to the Upper Great i.akes, and a variety of it inhabits the Allegha- 

 nies. The only American species. Japan has several. 



10. RHODODENDRON, binn., including Azam: a. 



Calyx very small in our species. Corolla large, varying from funnelform to cam- 

 panulate, 5-lobed, often slightly irregular. Stamens 5 to 10 : filaments filiform, 

 commonly declined : anthers short, the cells opening by a terminal pore or chink. 

 Style long, commoidy declined or incurved : stigma truncate or capitate. Capsule 

 woody, septicidally G-valved from tho summit. Seeds very numerous and small, 

 scobiform, i, e. with a loose cbafl'-like coat. — Ornamental shrubs ; with alternate and 

 entire leaves, usually crowded on the flowering branches ; the showy flowers in 

 terminal umbels or corymbs from ample scaly buds, the thin sc^ales or bracts decidu- 



