156 



THE DICTIONARY OF GARDENING, 



Hoya continued. 



H. Cumingiana (Cuming|s).* /. greenish-yellow or white, with 

 a coronet of rich purplish - brown ; umbels axillary, short. 

 Spring and summer. I. closely packed, flat, sessile, cordate, 

 slightly downy beneath. Malay Archipelago. (B. M. 5148.) 



H. globulosa (globular).* fl. pale straw or cream-colour, disposed 

 in globose umbels ; corona pink at base. April. I. oblong, 

 coriaceous, rounded at the base, acuminate at the apex, more or 

 less hairy. India, 1880. (G. C. n. s., xvii. 741.) 



H. imperialis (imperial).* fl. reddish-brown, very large, about 

 Sin. across, waxy ; umbels Sin. to 9in. in diameter, and eight 

 to ten-flowered. June. I. 6in. to 9in. long, slightly tomentose, 

 light green. Borneo, 1847. A very noble plant. (B. M. 4397.) 



H. lacunosa (furrowed). /., corolla greenish-yellow, rotate ; 

 inner surface covered with velvety hairs ; peduncles interpetiolar, 

 solitary, usually shorter than the leaves, bearing a flattened 

 umbel of numerous flowers. March to June. I. opposite, elliptic- 

 lanceolate, acuminated, marked above with a depressed midrib 

 and a few horizontal depressed veins; petioles thick, short 

 Branches terete, throwing out roots from various points. Indian 

 Archipelago, 1854. (B. M. 4826.) 



H. L pallidiflora (pale-flowered), fl. almost colourless. I. 

 broader than in the type; nervation obsolete. Java. (B. M. 

 5272.) 



FIG. 244. HOYA CARNOSA VARIEGATA. 



H. lineorls (linear).* /. white, in a sessile, terminal, lax umbel. 

 Autumn. I. shortly stalked, cylindrical, sub-acute, deeply grooved 

 beneath, dark green. Himalaya. A charming plant, with slender 

 pendulous branches, suitable for cultivation in hanging baskets. 



H. multiflora. This is the correct name of the plant described 

 in this work under the name of Cyrtoceras multiflorum 

 (which see). 



H. ovalifolia (oval-leaved), fl. bright yellow, with a red corona ; 

 produced in large umbels. Summer. I. fleshy, narrowly oval, 

 about 6in. long, rolled back at the edges, dark green. India, 1840. 

 (L. & P. F. 0. 23.) 



H. pallida (pale).* fl. pale yellow or straw-colour, with a pink 

 corona ; very fragrant, disposed in moderate-sized umbels. 

 Summer. 1. fleshy, ovate, dark green. India, 1815. (B. R. 951.) 



H. PaxtonL See H. bello. 



H. Pottsli (Potts's).* fl. pale yellow, si 



corona rather purple in the centre; uml .. , 



acuminated, with a rusty stain partly spread over them, pale 

 whitish beneath. India, 1824. (B. M. 3425.) 



H. purpnreo-fusca (purplish-brown-flowered), fl. purplish- 

 brown, produced in large umbels. September. I. ovate, slightly 

 acuminate, fleshy, dark green. Java, 1849. (B. M. 4520.) 



H. Shepherd! (Shepherd's).* fl. small ; corolla delicate white and 

 rose-colour ; umbels about 2in. in diameter. June. I. 2in. to 6in. 

 long, four lines wide, shortly acuminated at the apex, dark and 

 channelled on the upper side, paler and semi-terete beneath ; 

 they are, as it were, geniculated at the apex of the short terete 

 petiole, or bent down suddenly at an angle, and thus become 

 pendent, h. 3ft. Sikkim-Himalaya and Khasia, 1860. A very 

 remarkable plant. (B. M. 5269.) 



H. trinervis (three-nerved), fl. pale greenish-yellow, slightly 

 scented ; corona whitish, with a yellowish tinge in the centre ; 

 umbels globose. Summer. I. variable in size, oblong, sharply 

 acuminated, light yellowish -green above. China. 1824. 



How, slightly downy, fragrant; 

 re ; umbels globose. I. cordate, 



HUCKLEBERRY. See Gaylussacia. 



HUDSONIA (named after William Hudson, 1730-1793, 

 a London apothecary, and author of " Flora Anglica "). 

 ORD. Cistinece. A genus comprising three species of half- 

 hardy evergreen shrubs, from North America. Flowers 

 yellow, small, numerous, showy, crowded along the upper 

 part of the branches. Leaves awl-shaped, scale-like, per- 

 sistent, downy. The species thrive best in pots of well- 

 drained peaty or sandy soil, but are rather difficult to 

 cultivate. Propagated by layers ; or by ripened cuttings, 

 inserted in sand, under a hand glass. 

 H. cricoides (Heath-like).* fl. yellow ; peduncles solitary, rising 



laterally from the leafy bud. May to July. I. filiform, awl-shaped, 



rather imbricated. Stems suffruticose. h. 1ft. Maine to Vir- 



ginia, 1805. (L. B. C. 192 ; S. C. 36.) 

 H. tomentosa (tomentose). fl. yellow, sessile or short-peduncled. 



May and June. I. oval or narrowly-oblong, short, close-pressed 



and imbricated, h. 1ft. North America, 1826. Plant hoary 



with down. (S. C. 57.) 



HUEGELIA. Now included under Gilia (which see). 



HUERNIA (named after Justus Huernius, one of 

 the earliest collectors of Cape plants). ORD. Ascle- 

 piadece. A genus comprising about eleven species of in- 

 teresting greenhouse succulent plants, with the habit of 

 Stapelia, from the Cape of Good Hope. Flowers large ; 

 corolla bell-shaped, five-fid, fleshy ; corona double, outer 

 one lobed, interior with five scales. For culture, see 

 Stapelia. 

 H. barbata (bearded), fl. cream - coloured, variegated with 



elevated purple spots ; disposed in fascicles at the base of the 



branches ; peduncles two or three-flowered. August. Branches 



four or five-angled, with spreading, acute teeth, h. 6in. 1795. 



(B. M. 2401, under name of Stapelia barbata.) 

 H. brevirostris (short-beaked).* fl. yellowish, minutely spotted ; 



tube pinkish-white, blood-red at bottom ; peduncles four to six- 



flowered. Branches erect or ascending, four, or rarely five- 



angled. h. 6in. 1877. (B. M. 6379.) 



H. campanulata (bell-shaped), fl. yellow; corolla campanu- 

 te, closed at bottom by clavate hori 

 preading, tr 



227, under n 

 H. Icntiginosa (freckled), fl. sulphur-colour, dotted with red ; 



peduncles three-flowered. July. Branches pentagonal, spreading, 



furnished with hooked teeth or tubercles, h. 6in. 1795. (B. M. 



506, under name of Stapelia lentiginosa.) 

 H. oculata (eyed).* fl., corolla tube almost hemispherical, white 



inside ; limb deep violet - purple ; column short. Summer. 



Branches soft, pale green, five-angled, quite glabrous, h. Sin. to 



4in. Dammara Land, 1880. (B. M. 6658.) 

 H. reticulata (netted), fl., corolla with a purplish bottom ; limb 



yellow, dotted with purple ; twin or tern. August. Branches pen- 



tagonal, denticulated, sap-green, with purple spots, h. 6in. 1793. 



(B. M. 1662, under name of Stapelia reticulata.) 



HUMATA. Included under Davallia (which see). 



HUMBLE BEE (Bombus terrestris, B. lucorum, $c.). 

 Humble Bees (see Fig. 245) have been known to damage 

 Beans and cultivated flowers that have the nectar at the 

 bottom of a long tube, by boring a hole in the calyx to 

 obtain the nectar more easily. The flowers are not 

 fertilised when robbed in this way, and the seeds become 



la 



izontal hairs ; ligules 

 spreading, truncate, dark. July to October, h. 6in. 1795. (B. M. 

 1227, under name of Stapelia campanulata.) 



FIG. 245. HUMBLE BEE. 



abortive. Yet though this at times occurs, the damage 

 done by it is so slight that the Bees ought to be regarded 

 as useful allies, because of the services rendered by them 

 in conveying pollen from flower to flower. There is reason 

 to believe that certain plants, e.g., Red Clover, are depen- 

 dent on Humble Bees for their fertilisation. Should the 



