134 



THE DICTIONARY OF GARDENING, 



Helmholtzia continued. 



H. glaberrima (very glabrous), fl. white, panicled. May. I. 

 eiisiform, acuminate, equitant, lin. broad, h. 3ft. 1873. (B. M. 

 6056, under name of Philydnim glaberrimum.) 



HELMIA (named after C. Helm, a German eccle- 

 siastic). OBD. Dioscoreacce. A. stove evergreen climber, 

 now included under Dioscorea (which see for culture). 



H. racemosa (raceme-flowered), fl. yellow, purple ; male ra- 

 ceme axillary, solitary. I. scattered, cordate-ovate, acuminate, 

 nine-nerved, glandular at base. Roots tuberous, h. 8ft. Central 

 America, 1850. 

 HELMINTHOSTACHYS (from lielmins, helmin- 



thos, a little worm, and stachys, a spike ; in allusion to the 



arrangement of the sporangia). OBD. Filices. A curious 



and handsome stove fern, closely allied to Botrychium. 



Capsules in small crested clusters, which form a long loose 



epike. For culture, see Ferns. 



H. dulcis (sweet). A synonym of II. zeylanica. 



H. zeylanica (Cingalese), rhiz. thick, creeping, sti. often 1ft. 

 long. fronds> barren segments palmato-pinnate, often in three 

 principal divisions, which are stalked and again forked or pinnate, 

 the ultimate divisions linear-oblong. Sin. to 4in. long, nearly 

 lin. broad; fertile spike solitary, arising from the base of the 

 barren segments, Sin. to 4in. long, Jin. broad. Himalaya to 

 ' 'cis (H G " 



nd, 1861. SYN. H. dulcis. (H. G. F. 

 HELONIAS (from helos, a marsh; habitat of species). 

 OBD. Liliacece. A monotypic genus, the species being 

 a pretty hardy herbaceous perennial, from North America. 

 It thrives in a sandy fibry loam and peat compost, and 

 in a moist, shaded situation. Increased slowly by di- 

 visions of the roots, or by seed. 



H. bullata (bullate). fl. purplish-rose, small; lower ones with 

 linear-lanceolate bracts ; spike oval. Summer. I. radical, oblong- 

 lanceolate, acute, veined, shorter than the flower stems, h 1ft 

 to lift. 1758. SYN. H. tatifolia. (B. M. 747.) 

 H. latifolia (broad-leaved). A synonym of H. bullata. 



HELWINOrlA (named in honour of Georg. A. Hel- 

 wing, a writer on the botany of Prussia). OBD. Araliacece. 

 A genus consisting of but two species, one Himalayan 

 and the other Japanese. They are glabrous trees, 

 more curious than beautiful, and scarcely worth culti- 

 vating, except in botanical collections. 

 H. ruscifolia (Ruscus-leaved). fl. small, clustered on the midrib 

 of the leaves ; perianth three to four-parted, with ovate spreading 

 segments, fr. drupaceous. I. alternate, petiolate, acuminate, 

 stipulate. Japan. A low tree. The young leaves are used in 

 Japan as a vegetable (S. Z. F. J. 86.) 



HELWINGIACEJE. A tribe of Araliaceos. 

 HEMEROCALLEJE. A tribe of Liliacece. 

 HEMEROCALLIS (old Greek name used by Theo- 

 phrastus, from hemero, a day, and kallos, beauty ; in 

 reference to its short-lived splendour). Day Lily. OBD. 

 Liliacece. Very ornamental hardy herbaceous perennials. 

 Flowers corymbose ; segments of the perianth united at 

 the base into a narrow tube, inclosing the free ovary. 

 Leaves long, narrow, radical. All the species are of easy 

 culture in ordinary garden soil, and are admirably adapted 

 for shrubberies, or for clumps. The flowers are some- 

 what ephemeral, but they are produced successively and 

 in abundance. Increased by divisions. 

 H. alba (white). A synonym of Funkia subcordata. 

 H. caerolea (blue). A synonym of Funkia ovata. 

 H. cordata (heart-shaped). A synonym of Funkia subcordata. 

 H. disticha (two-ranked). A synonym of H. fulva. 

 H. Dumortieri (Dumortier's).* fl. orange-yellow, tinged with 

 brown on the outside, large, about 2in. long ; scape erect, two to 

 four-flowered. Summer. 1. long, narrow, tapering, 1ft. to lift 

 long. A. 1ft. to lift. Japan and Eastern Siberia. Very dosclv 

 allied to H. minor. SYNS. H. rutilans and H. Sieboldii. (Ref. B. 



H. flava (yellow).* fl. orange-yellow, very fragrant, erect ; perianth 

 segments flat, veinless. Summer. I. numerous, narrow, 2ft. to 

 2t. long, keeled, h. 2ft. to 3ft. South Europe to Western 

 Siberia and Japan, 1596. (B M. 19.) 



B. fulva (tawny).* fl. large, about 4in. wide, inodorous, few in a 

 cluster ; perianth segments venous and wavy. Summer. I. broad 

 long, keeled. h. 2ft. to 4ft. South Europe to Japan, 1596. 

 SYN. H. disticha. See Fig. 216. (B. M. 64.) H. Kiua^o is a 



Hemerocallis contin ued. 



FIG. 216. HEMEKOCALLIS FULVA. 



variety with large double bronzy orange-coloured flowers (R. O. 



500) ; of this form, there is also a sub-variety, with handsome 



variegated foliage. 



H. graminea (grass-like). A synonym of II. minor. 

 H. japonlca (Japanese). A synonym of Funkia subcordata. 



FIG. 217. HEMEROCALLIS MIDDENDORFII, showing Habit and 

 detached Head of Flowers. 



H. Middendorfii (Middendorf's)* fl. deep golden-yellow, three 

 or four in a terminal head ; perianth segments flat, with branched 

 veins. Summer. I. long, rather broad, h. 2ft. to 3ft. Eastern 

 Siberia to Japan. See Fig. 217. (R. G. 522.) 



H. minor (leaser).* fl. yellow, slightly tinged with green, rather 

 small, and slightly fragrant; three inner perianth segments 

 wavy. Summer. I. very narrow, keeled, pointed, h. 4in. to Bin. 

 Siberia, Northern China, and Japan, 1759. SYN. H. graminea. 

 (A. B. R. 244.) 



H. plantaginea (Plantain-like). A synonym of Funkia subcor- 

 data. 



H. rutilans (ruddy). A synonym of H. Dumortieri. 



H. Sieboldii (Siebold's). A synonym of H. Dumortieri. 



