426 DECANDRIA. MONOGYNIA. rhododendron. 



Hate; flowers very viscous; tube scarcely longer than the 

 segmeuiS ; teeth of the calyx oblong, rounded ; filaments ex- 

 seried, Azalea hispida Piirsh FIA. p. 154, Roem, 

 ^ Schult. IV. p. 578. 



A shrub 10 — 15 feet high, very upright, and of a blueish ap- 

 pearance. Floivers white, with a red border, and a tinge of 

 red on the tube, which makes them appear of a rose-colour 

 before they open. Fh. 



H/B On the borders of lakes on the highest parts of the Blue 

 Mountains, New-York to Pennsylvania. July — August. 

 Purah. 



* Floivers campanulaie i stamens 5 — 10. 



7o R. lapponicum WahL: leaves elliptical, roughened 

 with excavated punctures. WahL FL Lapp, 104. Azalea 

 lapponka Lin. FL Lapp. 89. t. 6. f. 1. fVilld. Spec. L 

 p. 832. FL Dan. 966. Roem. ^ Schult. IV. p. 378. 



An evergreen (procumbent?) shrub, 8 — 10 inches high, with 

 straggling branches. Leaves mostly crowded towards the ex- 

 tremity of the branches, scarcely more than half an inch long, 

 elliptical ovate, coriaceous, flat, rather obtuse, on very short 

 petioles, covered on both surfaces with excavated punctures 

 or pores, which, especially on the lower surface, are closed 

 vvitl> ferruginous scales. Flowers in terminal leafy clusters. 

 Calyx minute, 4-toothed ; teeth obtuse. Corolla bright pur- 

 ple, campanulate, 4-cleft; segments rounded, nearly equal. 

 Stamens 8, a little longer than the corolla ; filaments slender, 

 woolly at the base ; anthers oblong, opening by 2 small ter- 

 minal pores. Germen roundish, pubescent j style filiform ; 

 stigma capitate, entire. 

 Hab On the White Hills of New-Hampshire. July. Bi 

 gclota. 



This rare plant is also a native of Lapland. A fine speci- 

 men, sent to me by Dr. Bigeloiv, agrees in every respect 

 with one in my Herbarium from Lapland. Whatever doubt 

 there may be respecting the propriety of removing the other 

 species of Azalea to Rhododendron, I think there can be 

 none about this. Its habit is exactly that of R. ferrugineunz 

 znd fiu7ictatum. 



8. R. maximum L.: arborescent; leaves oblong, acute, 

 paler beneath ; umbels terminal ; segments of the calyx oval, 

 obtuse; corolla campanulate, Willd. Spec. il. p. 606. 

 Boi. Mag.'^ib\. Schmidt Arb.i. \2\. Mich. FL\» 

 p 259. M I c h. f. Arb. 111. p. 144. t. 4. Pur sh FL L 

 p. 297. Big. Zios/. p. 102. Ejtisd. Med. Bot. Ill, 10). U 

 51. Elliott ^k.\. p. 4B3. Wang. Amer.p.63. t. 23. 

 f. 49. Cham^rhododendrgs^ &c. Catesb* Car, III, p. 



