AN ENCYCLOPEDIA OF HORTICULTURE. 



135 



HEMIANDRA (from hemi, a half, and andros, a 

 male ; alluding to the dimidiate anthers). OBD. Labiatce. 

 A genus comprising three species of greenhouse shrubs 

 or sub-shrubs, inhabiting South-west Australia. Flowers 

 white or pink, axillary, solitary, with a pair of bracts 

 under the calyx. Leaves opposite, entire, narrow, rigid, 

 pungent-pointed. The species thrive in a sandy loam and 

 peat compost. Propagated by cuttings, made of half- 

 ripened wood, and inserted in sand, under a bell glass, 

 during April. 



H. pungcns (stinging), fl. white or pink, with darker spots ; 

 calyx two-lipped ; corolla tube exserted and dilated into a broad 

 throat. May. I. sessile, linear or linear-lanceolate, rigid, acute, 

 with pungent points, h. lit. to 2ft. A diffuse or spreading rigid 

 shrub. The following, according to Bentham, are but forms of 

 above : H. brevifolia, H. emarginata, H. glabra, H. hirguta, and 

 H. rupestris. (L. J. F. 126.) 



HEMICH2ENA (from hemi, half, and chaino, to 

 gape; in allusion to the two-lipped corolla). OBD. Scro- 

 phularinece. A monotypic genus. The species is a hand- 

 some half-hardy shrub. It thrives in a loam and peat 

 compost. Ripened cuttings will root, under a hand glass, 

 in bottom heat. 



H. fruticosa (shrubby), fl., cymes usually three-flowered, much 

 shorter than the leaves ; calyx iin. long, tubular ; corolla golden- 

 yellow. July. I. opposite, 4in. to Sin. long, 2in. to 2iin. broad, 

 oblong-lanceolate, acuminate, irregularly or doubly toothed, dark 

 green, pubescent on both surfaces, h. 3ft. to 5ft. Guatemala and 

 Costa Rica, 1873. (B. M. 6164.) 



HEMICLIDIA BAXTERI. A synonym of Dry- 

 andra falcata (which see). 



HEMIDICTYUM. See Asplenium. 



HEMIMERIS (from hemi, half, and men's, a part; 

 the upper lip of the corolla is nearly obsolete). OBD. 

 Scrophularineae. A genus comprising about four species 

 of annual herbs, natives of Southern Africa. Corolla 

 yellow, expanded, sub-bilabiate, four-cleft, the upper 

 segment very shortly emarginate, the lower segment 

 very large, the lateral short and wide; calyx five- 

 parted ; peduncles axillary, one-flowered, deflexed after 

 flowering. Leaves opposite. H. montana, perhaps the 

 only species yet introduced, is a greenhouse plant, of 

 easy culture in loam and peat. It may be increased 

 by seeds. 



H. montana (mountain), fl. scarlet, terminal and axillary ; corolla 

 rotate, ringent. July. I. opposite, ovate, serrated, h. 6in. Cape 

 of Good Hope, 1816. 



FIG. 218. HEMIONITIS PALMATA. 



HEMIONITIS (old Greek name used by Dioscorides, 

 from hemionos, a mule ; supposed to be barren). OBD. 

 Filices. A genus comprising eight species of stove ferns, 

 fonad in both hemispheres. Sori continues along the 

 veins, and copiously reticulated. The species are admir- 

 ably suited for growing in Wardian cases. For culture, 

 see Ferns. 



H. cor data (heart-shaped), can. erect, sti., of the barren fronds, 

 2in. to 4in. long ; of the fertile ones, about 1ft. long, densely fibril- 

 lose at base, fronds 6in. to 9in. long, Iin. to 2in. broad, ovate or 

 oblong-lanceolate, apex acuminate, edge sub-entire, base nar- 

 rowed, sori confined to the veins. India, &c. 

 H. palmata (palmate)., can. erect, sti., of barren fronds, 4in. ; 

 of the fertile one, 6in. to 12in. long, hairy, fronds 2in. to 6in. each 

 way, palmate, with five nearly equal lanceolate divisions ; both 

 surfaces villose. West Indies, &c., 1793. See Fig. 218. (H. E. F. 53.) 

 H. plnnata (pinnate), sti. 6in. to 9in. long" glossy, dark chestnut- 

 brown, clothed with soft yellowish hairs, fronds 5in. to 6in. long, 

 Sin. to 4in. broad, the apex deeply pinnatifid, below this two or 

 three pairs of distinct pinnae, the upper ones oblong-lanceolate, 

 the lowest larger and forked at the base, all repand. Jamaica. 

 HEMIPHRAGMA (from hemi, half, and phragma, 

 a partition ; referring to the division of the capsule). OBD. 

 Scrophularineas. A monotypic genus, the species being a 

 nearly hardy prostrate herb, often spreading to a great 

 extent. It thrives in a well-drained loam, and, provided 

 it is sheltered in a cold frame, during winter, succeeds 

 without much care. 



H. heterophyllum (variable-leaved), fl. pink, small, usually 

 sessile and solitary ; corolla campanulate, five-lobed. Summer. 

 Jr. fleshy, black. I., principal ones along the branches, small, 

 rounded, cordate, with dense clusters of short, subulate, second- 

 ary leaves in their axils. Himalayas. 



HEMISTEMMA. Included under Hibbertia 

 (which see). 



HEMITELIA (from hemi, half, and telia, a lid; in 

 reference to the shape of the indusinm). OBD. Filices. 

 A genus of about thirty species of very beautiful stove 

 and greenhouse tree ferns. Fronds ample, pinnate or 

 decompound. Sori globose, dorsal, upon a vein or 

 veinlet ; receptacle elevated ; involucre a scale situated 

 on the under side of the sorus, of variable size, shape, 

 and texture. For culture, see Ferns. 



H. capensis (Cape), cau. 12ft. to 14ft. high, scaly at base, often 

 hearing multifid pinna;, fronds ample, sub-membranaceous, bi- 

 tripinnate; primary pinna; petiolate, ovate-oblong; pinnules 

 sub-sessile, 2in. to 3in. long, iin. wide, oblong-acuminate, deeply 

 pinnatifid or again pinnate ; lobes linear-oblong, acute, strong " 

 serrated, sori frequently solitary at base of lobe or pinnu 

 rarely three or four ; receptacle large, prominent. South Africa, 

 Brazil, Java. Greenhouse. 



H. grandifolla (large-fromled).* sti. aculeated. fronds ample, 

 pinnated ; pinna; sessile, 1ft. to lift, long, elongate-oblong, 

 acuminated, Iin. to 2in. broad ; lobes broad-oblong, obtuse, 

 serrated at the apex, sori on the free veins, in a continual line, 

 intermediate between the costule and the margin. West Indies, 

 &c., 1852. Stove. 



H. horrida (horrid), sti. strongly aculeated. fronds 7ft. to 

 10ft. long, pinnate ; pinna; sessile, 1ft. to 2ft. long, broad, oblong- 

 lanceolate, deeply pinnatifid ; lobes Sin. long, oblong-lanceolate, 

 acuminate, sori on the free veinlets, forming a continued line 

 just within the margin. West Indies, &c., 1843. Stove. 



H. Karsteniana (Karsten's). sti. muricated and scaly at 

 the base, fronds ample, pinnated ; pinna; sessile, 6in. to 12in. 

 long, 2in. broad. sori in two oblique lines, meeting towards the 

 rachis. Venezuela. Stove. 



H. multiflora (many-flowered), sti. muricated, scaly, fronds 

 ample, tripinnatitid ; pinnae oblong-lanceolate, 1ft. to lift long ; 

 pinnules Sin. to 4in. long, ligulate, nine to ten lines broad, cut 

 down to a narrow wing, sori small, medial. South America, 

 1824. Stove. 



H. setosa (bristly), sti. short, grey, muricated ; basal scales dark 

 brown ; rachises grey-stramineous, naked, smooth, fronds ample, 

 tripinnate ; pinna; oblong - lanceolate, 1ft. to lift, long, lower 

 diminished, lowest dimorphous, with pinnated subulate seg- 

 ments ; pinnules ligulate, Sin. to 4in. long, Jin. broad, cut down 

 to rachis below ; segments iin. broad, bluntish, falcate, barren, 

 broad, fertile, narrower ; both sides green, glabrous. sori cos- 

 tular ; involucre small, depressed, glabrous. Brazil. Stove. 



H. Smithii (Smith's).* sti. below densely crinite, with rigid, 

 elongated, serrulated scales ; rachis and costa below sparsely 

 pilose, with lax, rufous, deciduous scales above, strigoso-villous. 

 fronds bipinnate ; primary pinnae linear-elongate, acute, sub-fal- 

 cate, serrated or crenate, very glabrous, thecostules beneath pale- 

 aceous or pilose or glabrous, sori on the forking of the veins ; 

 involucre hemispherical. New Zealand. Arboreous, unarmed. 

 Greenhouse. SYN. Cyathea Smithii. 



