AN ENCYCLOPAEDIA OF HORTICULTURE. 



109 



Hsemat oxy loii c ontinued. 



H. campechianum. Campeachy Wood. fl. yellow, produced in 

 axillary racemes. I. abruptly pinnate, in fascicles ; leaflets small, 

 obovate, obcordate. A. 20ft. to 40ft. Central America, Columbia, 

 and the West Indies, 1724. This plant yields the well-known 

 logwood of commerce, largely employed by calico-printers, dyers, 

 and hat-makers. It consists of the heart-wood of the tree, from 

 which the sapwood has been removed, and is of a deep, dull, 

 brownish-red colour. (B. M. PI. 86.) 



HJEMODORACE2E. An order of epigynous mono- 

 cotyledons, belonging to Lindley's Narcissal alliance of 

 endogens. Perennial herbs, natives of the Cape, North 

 and South America, Central and Eastern Asia, and South- 

 west Australia. Perianth petaloid, tubular or sub-cam- 

 panulate, usually hairy or woolly outside, glabrous within. 

 Leaves alternate, usually distichous, sub-ensiform, sheath- 

 ing at the base, equitant. Bitterness exists in some of 

 the plants. The roots of some also yield a red colour: 

 hence the name of the order. As understood in the 

 " Genera Plantarum," there are twenty-six genera and 

 about 120 species. Well-known genera are : Anigo- 

 santhus, Hosinodorum, and Wachendorfia. 



H.2EMODORUM (from haima, blood, and doron, a 

 gift; probably in reference to the roots serving as food 

 for the natives of Australia. The name was given by 

 Theophrastes to the Broom-rape). Bloodroot. OBD. 

 Hcemodoraceoe. A genus of about seventeen species of 

 pretty greenhouse perennials, all natives of Australia, with 

 black, red, livid green, or orange -coloured flowers. They 

 thrive in peat and loam. Increased by dividing the 

 roots, in spring. The two species described below are 

 those best known to cultivation. 



H. planifolium (flat-leaved), fl. livid-purple or greenish at the 

 base, in short forked racemes or cymes, collected in a compact, 

 more 07 less corymbose panicle ; perianth segments linear or 

 linear-lanceolate. August. :., lower ones grass-like, flat ; upper 

 ones few and short. Stems 2ft. to 3ft. high. 1810. (B. M. 1610.) 

 H. teretifolium (terete-leaved). This closely resembles H. plani- 

 folium, but the leaves are from a short sheathing base, very long, 

 slender, and terete, or nearly so. August. 1822. 



HAGBERRY. See Cerasus Padus. 

 HAIRBELL. See Harebell. 

 HAIR GRASS. See Aira. 



HAEEA (named after Baron Hake, a German patron 

 of botany). SYN. Conchium. OKD. Proteacece. A large 

 genus (ninety-five species have been described) of green- 

 house evergreen shrubs or rarely small trees, limited to 

 Australia. Flowers hermaphrodite, in pairs ; perianth 

 irregular or rarely regular, the tube revolute or curved 

 under the limb, or rarely straight. Leaves alternate, very 

 diversified in shape, flat or terete ; margins rarely re- 

 curved, and the two surfaces usually similar and equally 

 veined. Hakeas thrive in a compost of two parts peat 

 and one of loam, with sufficient sand to secure perfect 

 drainage. Well-ripened cuttings will root in sandy peat, 

 under a bell glass, if first placed in a cool house, and 

 transferred to a mild bottom heat so soon as a callus 

 is formed. During summer, when the plants are grow- 

 ing, water may be freely given in early morning or 

 evening ; at other times, it should be carefully adminis- 

 tered. 



H. couchifolia (shell-leaved). A synonym of H. cucuUata. 

 H. cristata (crested), fl. white, small, in short axillary racemes. 

 June. I. cuneute-obovate, spinosely toothed, glabrous. A. 6ft. to 

 8ft. 1837. 



H. cucuUata (hooded).* fl. red, small, showy, in dense axillary 

 clusters. June. I. leathery, cordate, alternate, sessile, minutely 

 toothed, milky-green. Branches round, very hairy. A. 4ft. 1824. 

 SYXS. H. conchifolia and H. Victorias. (B. M. 4528.) 

 H. Cunningham! (Cunningham's), fl., racemes lateral on the 

 old wood, loosely cylindrical, 3in. to oin. long. May. I. terete, 

 rigid, mostly above 1ft. long. A. 12ft. to 16ft. A small tree. 

 SYN. H. longifolia. 



H. dactyloides (finger-like).* fl. white, very small, numerous, 

 in axillary clusters or short racemes ; perianth glabrous. July. 

 I. from linear-lanceolate to oblong-lanceolate, acute or scarcely 

 obtuse, tapering into a short petiole, rigid, prominently three- 

 nerved. Branches erect. A. 7ft. 1790. Shrub. SYN. Conchium 

 dactylohie*. (B. M. 4528.) 



Hakea continued. 



H. ferruginea (rusty). /. small, in axillary clusters ; perianth 

 glabrous, much revolute ; limb ovoid. May. I. glabrous or 

 villous, sessile, from cordate-ovate to ovate-lanceolate, shortly 

 acuminate, with a callous point, entire, or with slightly sinuate 

 or undulate margins. Branches tomentose-pubescent. A. 3ft. 

 to 4ft. SYN. H. repanda. (B. M. 3424 ; L. B. C. 1750 ; S. F. A. 45.) 



H. florida (flowery), fl. white, very small, in axillary clusters. 

 July. {. sessile or nearly so, lanceolate or linear-lanceolate, very 

 acute and pungent-pointed, bordered by a few prickly teeth or 

 small lobes. Branches pubescent or villous. A. 5ft. to 6ft. 

 1803. (B. M. 2579.) 



H. linearis (linear), fl. white, small, in axillary clusters or 

 short racemes ; perianth glabrous ; tube slender. May. I. ses- 

 sile, linear-lanceolate, pungent-pointed, entire or bordered by a 

 few small prickly teeth. A. 4ft. 1824. An erect, bushy, bright 

 green, glabrous shrub. (B. B. 1489 : S. F. A. 43.) 



H. longifolia (long-leaved). A synonym of H. Cunninghatni. 



H. myrtoides (Myrtle-like), fl. red, in axillary clusters. Fe- 

 bruary. Z. sessile, ovate or sub-orbicular, pungent, marginate, 

 smooth. Branches rather loosely villous, at length glabrous. 

 A. 2ft. to 3ft. 1849. (B. M. 4643.) 



H. nitida (shining).* fl. white, small, numerous, in axillary 

 racemes. June. 1. obovate-oblong, or rarely lanceolate, some- 

 times quite entire and obtuse, with a small pungent point, some- 

 times acute, pungent-pointed, and irregularly bordered by a few 

 prickly teeth or lobes. Branches glabrous. A. 6ft. to 8ft. 1803. 

 A dense shrub. (B. M. 2246.) 



H. pectinata (comb-like). A synonym of //. suaveolens. 



H. propinqna (related), fl. very small, in little axillary clusters. 

 June. I. crowded, terete, smooth, mucronate, rather thick, shortly 

 attenuated at the base. Branches scarcely pubescent. A bushy 

 shrub. 



H. pugioniformis (dagger-formed), fl. few, in axillary sessile 

 clusters ; perianth tube slender. May. I. terete, smooth, rigid, 

 with a short pungent point. Branches glabrous or very minutely 

 silky-pubescent. A. 2ft. to 4ft. 1796. (L. B. C. 353.) 



H. repanda (repand). A synonym of H. ferruginea. 



H. saligna (Willow-like), fl. small, in dense axillary clusters ; 

 perianth glabrous. April. I. usually lanceolate, obtuse, or with a 

 short, callous point, veinless, or obscurely and obliquely penni- 

 veined. A. 7ft. 1791. A tall bushy shrub. (S. F. A. 27.) 



H. suaveolens (sweet-smelling).* fl. white, racemose, smooth. 

 Summer. I. furrowed above, pinnatifid, occasionally undivided. 

 A. 4ft. 1803. SYN. H. pectinata. 



H. sulcata (furrowed-leaved). fl. small, in dense axillary clusters, 

 the small rachis densely villous. May. I. linear-terete, angular, 

 and furrowed, rigid, mucronate, sometimes pungent-pointed. 

 A. 5ft. to 6ft. 1820. An erect shrub. 



H. s. scoparia (broom-like), fl. yellow. May. I mostly longer, 

 sometimes 8in., less pointed than in the type, but occasionally 

 short in some branches. 1849. (B. M. 4644.) 



H. Victories (Queen Victoria's). A synonym of H. cucuUata. 



HALESIA (named after Stephen Hales, 1677-1761, 

 author of a famous work on " Vegetable Statics "). Silver- 

 Bell or Snowdrop Tree. SYN. Pterostyrax. OBD. Styra- 

 caceoe. A genus containing about half-a-dozen species of 

 ornamental hardy deciduous small trees, of which three 

 are North American, one Chinese, and two or three 

 from Japan. Flowers white, showy, drooping, on slender 

 pedicels, in fascicles (or rarely very short racemes) from 

 the axils of the fallen leaves of the preceding year. Leaves 

 rather large, ovate-oblong, acuminate, more or less den- 

 ticulate, slender-petioled. The species are well suited for 

 shrubberies and lawns, in almost any position ; but one 

 somewhat sheltered is most suitable, and a deep, sandy, 

 moist soil is best. Increased by layers, or by cuttings 

 of the roots, in spring and autumn. 



H. corymbosa (corymbose), fl. white, tinted with rose or 

 yellow, in corymbose panicles. June. I. rounded at the base, 

 ovate-cuspidate, sharply-serrated, hairy. A. 10ft. to 12ft. Japan. 

 SYN. Pterostyrax corymbosum. (S. 'L. F. J. 47.) 



H. diptera (two-winged), fl. white. Spring, fr. with two large 

 opposite wings and two obsolete ones. J. large, ovate, acute, 

 serrated. A. 10ft. North America, 1758. SYN. II. reticulata. 

 (L. B. C. 1172.) 



H. hispida (hairy).* /. white, in corymbose racemes, fr. covered 

 with stiff and dense hairs. I. large, cordate, on stout petioles. 

 Japan, 1875. SYN. Pterostyrax hispidum. See Figs. 166 and 167. 



H. parviflora (small-flowered), fl. white, drooping ; racemes 

 panicled. May. fr. clavate, slightly four-winged. I. ovate- 

 oblong, acute, nearly entire, downy, glaucous beneath. A. 10ft. 

 Georgia and Florida, 1802. 



H. reticulata (reticulated). A synonym of //. diptera. 



