44 ERICACEAE. Loiseleuria. 



(L. serpyttifolium,T)C.) with "capsules sparsely puberulent " or often granulate-roughish 

 is chiefly southern, and on the mountains passes into 



Var. prostratum. Depressed-tufted, with the habit of Loiseleuria : leaves mostly 

 oval and deeper green : capsules from smooth and nearly even to sparsely muricate with 

 soft projecting points or processes. (Gray, in Amer. Jour. Sci. xlii. 36.) L. prostratum, 

 Loud. Arb. 1155 ; DC. 1. c. Summit of Roan Mountain, and of other high mountains of . 

 Carolina. 



21. LOISELEtJRIA, Desv. (Loiseleur-Delongchamps, a French botanist.) 

 A single, arctic-alpiue species, which was included by Linnaeus in Azalea, but 

 is most unlike. 



L. procumbens, Desv. Fruticulose and cespitose, depressed, glabrous, evergreen : 

 leaves nearly all opposite, rather crowded on the branches, distinctly petioled, oval or 

 oblong, thick-coriaceous, veinless, 2 to 4 lines long, with thick midrib beneath and revolute 

 margins : umbel 2-5-flowered from a terminal coriaceo-foliaceous bud ; the scales or bracts 

 persistent : pedicels short : corolla rose-color or white (2 lines high), barely twice the length 

 of the purplish sepals. Jour. Bot. i. 35 ; DC. Frodr. 1. c. Azalea procumbens, L. Spec. & 

 PL Lapp. t. 6, f. 2; PL Dan. t. 9; Pall. PL Ross. t. 70, f. 2; Pursh, PL i. 154 (excl. pi. 

 Grandfather Mt., which is LeiopJiyllum) ; Lodd. Cab. t. 762. Chamcvledon procumbens, Link, 

 Euum. i. 211. Alpine region of White Mountains, New Hampshire ; also Labrador, Arctic 

 America to high N. W. coast and islands. (Greenland, Eu., N. Asia.) 



22. ELLlOTTIA, Muhl. (Dedicated to Stephen Elliott, author of Sketch 

 of the Botany of S. Carolina and Georgia.) Identified with a Japanese genus, 

 Tripcialeia, Sieb. & Zucc., forming a rather polymorphous but marked genus of 

 three species and as many sections, as arranged in Benth. & Hook. Gen. ii. 598. 



E. racemosa, Muhl. Shrub 4 to 10 feet high, glabrous, with slender branches : leaves 

 sliort-petioled, oblong, mostly acute at both ends, about 2 inches long, mucronate with a gland, 

 thinnish, pale beneath, lightly veiny : raceme or racemose panicle loosely many-flowered, a 

 span to a foot long : bracts and bractlets minute, scarious, very caducous : calyx very 

 short, 4-lobed : corolla white, half inch long ; the petals 4, spatulate-linear, valvate or 

 nearly so at base and imbricated at summit in the bud, in blossom recurved-spreading : 

 stamens 8: anthers somewhat sagittate, erect; the cells callous-mucronate : style little 

 declined, incurved at apex: ovary not stipitate. (Parts of the flower rarely in fives ?) 

 Muhl. in Ell. Sk. i. 448 ; Chapm. PL 273 ; Baill. Adans. i. 205. Wet sandy woods, on or 

 near the Savannah River, at Wayncsboro' (Elliott), and near Augusta ( Wrai/, and recently 

 Berckmans) in Georgia ; and on the S. Carolina side of the river near Hamburg, on David 

 L. Adams' place (0/ney, 1853) : rare and local : fl. early summer. Fruit still unknown. 



23. CLADOTHAMNUS, Bong. (KJnido^, branch, and da^vn^ bush.) - 

 Bong. Veg. Sitk. 37, t. 1 ; Benth. & Hook. Gen. ii. 51)8. Tolmiea, Hook. Fl. ii. 

 44. A single species. 



C. pyroleeflorus, Bong. Tall shrub with many virgate branches, glabrous, leafy : 

 leaves obovate-lanceolate, glandular-mucronulate, almost sessile, thin, an inch or so long, 

 pale: flower nodding on a short pedicel: petals reddish, hardly half inch long. DC. 

 Prodr. vii. 722. Tolmiea occidentalis, Hook. 1. c. Low woods, Washington Territory to 

 Alaska. 



24. CLETHRA, Gronov. WHITE ALDER. (Klifloa, ancient Greek name 

 of the Alder, which the original species somewhat resembles in foliage.) Shrubs 

 or small trees ; with alternate leaves, in ours serrate and deciduous, and white 

 flowers in simple or panicled chiefly terminal racemes ; these usually canescent 

 with a stellate pubescence. Bracts subulate, deciduous : bractlets none or ca- 

 ducous. Leaf-buds of few scales or naked. Capsule in ours nearly enclosed in 



