1148 



ARBORETUM AND FRUTICETUM. 



PART III. 



Dr. Horsfield. (Don's Mill., in. p. 844.) 

 A shrub, growing to the height of from 

 3 ft. to 5 ft., a native of Nepal, on Gos- 

 sainthan, a high mountain to the north 

 of the valley. It was raised in 1825, by 

 Messrs. Loddiges, from seeds received from 

 Dr. Wallich, and flowers in April. This 

 species seems much less tender than any of 

 the others yet received from the Himalayas ; 

 and, plants having stood out in the arboretum 

 of Messrs. Loddiges for several winters 

 without protection, and without having re- 

 ceived any injury, it may be considered as 

 very nearly hardy. 



953 



Sy 

 E 



} R. barbatum Wall., Don's Mill., 3. p. 844. Leaves oblong-lanceolate, acute, obtuse at the base, 

 yellowish beneath. Calycine segments dilated, membranous. Ovarium l()-celled, glandular, hispid. 

 Petioles and midrib of leaves bristly. Filaments glabrous, toothless. Leaves a span long. Corolla 

 dark red, with broad, rounded, cloven segments. Ovarium thickly beset with glanduliferous bristles. 

 A tree, a native of Nepal, introduced in 1830 or before, and of which there are plants at Messrs. 

 Loddiges's, and in some other nurseries. 



41 R. xcylanicvm Lodd. Cat., and R. strictum Lodd. Cat., appear to be varieties 

 of R. arbureum ; but from the plants in the Hackney collection being small, 

 and not having yet flowered, it is difficult to say with certainty what they are. 



B. Species not yet introduced. 



* R.formdsum Wall. PI. Rar. Asiat, 3. p. 3. t. 207., Don's Mill., 3. p. 835., has 

 the leaves lanceolate, attenuated at the base, beset with rusty dots beneath, and 

 the flowers about the sire of those of R. p6nticum, white, suffused with red. 

 It is a shrub, a native of Nepal, which is not yet introduced. 



R. linearijblium Poir., Don's Mill., 3. p. 844 , has linear coriaceous leaves, 

 and small flowers in corymbs. It is a native of the East Indies ; but very little 

 is known respecting it, and it may probably belong to some other genus. 



ii. Pogonanthum. 



Derivation. From pogon, a beard, and anthos, a flower ; throat woolly inside. 

 Sect. Char. Limb of calyx short, 5-lobed. Corolla salver-shaped, with a 



cylindrical tube, and a spreading limb. Stamens 5, enclosed. Ovarium 



5-celled. Evergreen. Leaves coriaceous. 



*. 301 R. ANTHOPO'GON D. Don. The bearded-flowered 

 Rhododendron. 



Identification. D. Don in Mm. Wern. Soc., 3. p. 409. ; Don's Mill., 3. p. 8*5. 

 nonyme. R aromaticum Wall. Cat. 

 ngravings. Royle Illust, t. 64. f. 2. ; and our fig. 954. 



Spec. Char., 8(C. Branchlets downy. Leaves oval, rusty beneath from lepidoted 

 tomentum. Corollas with a woolly throat. Shrub much branched. Leaves 

 ending in a reflexed mucro, naked above. Flowers glomerate, sulphur-coloured. Pedicels short, 

 lepidoted, and resinous. Calycine segments rounded at the apex, with villous margins. Segments 

 of corolla roundish, with undulated curled margins. Filaments glabrous. Stigma clavate. (Don's 

 Mill., iii. p. 845.) A shrub, from 1ft. to l|ft. high, a native of Nepal, on Gossainthan. It was 

 introduced in 1820, and flowers in April and May. 



iii. Tsutsutsi D. Don. 



Derivation. The Chinese name of A. indica. 



Sect. Char. Limb of calyx foliaceous, 5-cleft. Corolla campanulate. Stamens 510. Ovarium 

 5-celled. Evergreen. Leaves membranous, hispid from hairs. Indian azaleas of British gardens. 



A. Indian half-hardy Azaleas already in British Gardens. 

 * 31. R. I'NDICUM Swt. (A. I'NDICA Lin.) The Indian Azalea. 



Identification. Swt. Fl.-Gard., 2d s., t. 128. ; Don's Mill., 3. p. 845. 

 Synoni/me. Azalea fndica Lin. Sp., 214., Thunb. Fl. Jap., 84., Sims Bot. 



Mag., t. 1480., Lodd. Bot. Cab., t.278. 

 Engravings. Bot. Mag., t. 1480. ; Lodd. Bot. Cab., t. 275. ; Swt. Fl.-Gard., 



2d ser., t. 128. ; and our fig. 955. 



Spec. Char.,f{c. Branches strigose. Leaves cuneate-lanceolate, finely ere- 

 nulated, strigose, attenuated at both ends. Calycine teeth long-lan- 

 ceolate, obtuse, ciliated, spreading. Flowers terminal, solitary or twin, 

 decandrous ; very showy, and scarlet or red. (Don's Mill., iii. p. 845.) A 

 shrub, from 3ft. to 6 ft. high, a native of China and Japan, where it is 

 much cultivated for the sake of its flowers. It was introduced in 1808, 

 and flowers from March till May. It is a very popular plant in British 

 stoves and green-houses; though, to flower profusely, it requires to be 

 grown in the temperature of the bark-stove. As it cross-tecundates r r 

 freely with the hardy species, it has led to the production of various " 33 

 hybrids, which are half-hardy, and some of thtvm nearly hardy. 



