HEL 



280 



HEM 



Nat. Or. Zingiberdccoe. Ornamental plants ; 

 for culture and propagation, see Hedjjchium. 

 abndrmis . . White 6, S. Her. P. S China . . 1824 

 caerulea . . White 6, S. Hor. P. 4 N. Hoi. . .1820 

 chinensis . White 6, S. Her. P. 3 China . 1825 



Helmet-shaped. See Qdleate. 



Helmia, Kth. Named in honour of C. Helm, 

 a German ecclesiastic. Linn. 22, Or. 6, Nat. 

 Or. Dioscoriddccce. A genus nearly related to 

 Dioscbrea, or Yam, and requiring exactly the 

 same treatment, 

 racem&sa Yel. pur. 5, S. Tw. S . 6. C. Amer. . 1850 



HELMfNTHiA, Jussieu. From helminthion, a 

 little worm ; because of the resemblance of the 

 rugose seeds. Linn. 19, Or. 1, Nat. Or. Aster- 

 acece. The seeds of this species only require 

 to be sown in the open border. Synonyms : 1, 

 Picris echioides. 

 echioides . Yel. . 6, H. A. 3 Brit., hedge bks. 



Helminthosp5rium, Link. Linn. 24, Or. 2, 

 Nat. Or. Botrytacece. These species are found 

 on oak branches, rotten sticks, &c. — fusispb- 

 rium, nanum, simplex, subulalum. 



Helminthostachys, Kaulfus. From Iwlmins, 

 a worm, and staehys, a spike ; shape of spike. 

 Linn. 24, Or. 1, Nat. Or. Ophioglossacece. For 

 culture, see OphiogUssum. 

 dulcis . . Bra. yel. 7, S. Her. P. 1 I. of Luzon. 



Helmisp6rium, Link. From helmins, a worm, 

 and spora, a sporule ; shape of the sporules. 

 Linn. 24, Or. 9, Nat. Or. Botrytacem. Patches 

 of very minute black fungi, found on dead 

 wood and branches of trees — macroc&rpon, vc- 

 lutinum. 



Hel6nias, Linn. From helos, a marsh ; in re- 

 ference to the habitat of the plants. Linn. 6, ' 

 Or. 3, Nat. Or. Melanthacece. These are orna- 

 mental plants, delighting in peat soil and' a 

 moist situation, where they will grow and 

 flower profusely ; they increase readily by di- 

 viding the roots, or by seeds. Synonymes : 1, 

 H. latifilia ; 2, B. Usta. See Ohammllrium, 

 Leimdnthium, Xerophfillwm, and Zigadinus. 



angustifSlia . . Wht. 5, H. Her. P. 1 N. Amer. 1823 

 bullata 1 . . . Pur. 4, H. Her. P. 1 N. Amer. 1758 

 erythroderma 2 Wht. 6, H. Her. P. i N. Amer. 1770 



HELOSCiADiyM, Koch. From helos, a marsh, 

 and skiadon, an umbel ; an umbelliferous 

 plant, inhabiting marshes. Linn. 5, Or. 2, 

 Nat. Or. Api&cece. Mere weeds, growing iii 

 ponds or rivulets, like other hardy aquatics. 

 Synonymes : 1, Sison Ammi ; 2, S. bulbosum ; 

 3, S. inundatum; 4, Slum nodiflbrum ; 5, Sison 

 ripens — Ammi 1, bulbbsum 2, inundatum 3, 

 laciniatum 4, nodifl6rum 5, repens 6. 



Helvella, Linn. A name employed by Cicero 

 as the name of a fungus. Linn. 24, Or. 9, 

 Nat. Or. Helvellacece. These species are found 

 iu spring and autumn in wood's, fields, &c. — 

 eldstica, esculinta, infula, leucophdea, mitra. 



HelvellAce^!, or ascomycetes. Form an 

 order of Fungales possessing the characters of 

 the Truffle (Thber), the Morel (Morchella), and 

 the German Morel (Helvilla), all three used as 

 articles of food. 



HELWfNGlA, Willd. Curious plants with no 



beauty, and scarcely worth cultivating ex- 

 cept in botanical collections, —ruscifblia. 



HelwingiAce^;, or Helwingiads. A small 

 order of plants of curious construction, the 

 flowers being situated on the midribs of the ' 

 leaves. Only one genus is at present known. 



Hemekocallis, Linn. From liemcra, a day, and 

 hallos, beauty ; alluding to the beauty and 

 duration of the flowers. Linn. 6, Or. 1, Nat. 

 Or. Liliacece. This is an ornamental genus 

 of flowering plants, of the simplest culture, 

 thriving well in any light loamy soil, and rea- 

 dily increased by divisions. See Funkia and 

 Pancratium. 



dfsticha . . Orange 5, H. Her. P. 2 China . . 1798 

 flava . Yellow 6, H. Her. P. 2 Siberia . 159H 



fulva . . Fulvous 7, H. Her. P. 3 Levant . 1509 

 variegata . Copper 7, H. Her. P. 3 Gardens, 

 fldre-pleno . Copper 7, H. Her, P. 3 Gardens, 

 grammea . . Li. yel. 6, H. Her. P. 1 Siberia . 17.50 

 Sieb61di . . Pink . 9, H. Her. P. 3 Japan . 1833 

 specidsa . . Yellow 7, H. Her. P. 3 



Hemiadelphis. From hemi, half, and adelphia, 

 a fraternity. Linn. 14, Or. 2, Nat. Or. Acan- 

 thdcece. See Jiisticia. 



Heml&ndra, Bentliam. From hemi, half, and 

 aner, an anther ; in allusion to the dimidiate 

 anthers. Linn. 14, Or. 1, Nat. Or. Lamiacecs. 

 Pretty plants, which grow freely in a mixture 

 of light sandy loam and peat, and propagate 

 easily by cuttings planted in sand, and placed 

 in heat. 



brevifolia . . Rose . 5, G. Ev. S. 3 N. Hoi. . . 1840 

 emarginata . Wt pk. 5, G. Ev. S. 3 N. Hoi. . . 1840 

 hirsilta . White 5, G. Ev. S. 3 Swan Riv. . 1887 

 rupestris . . White 5, Q. Ev. S. S Swan Eiv. . 1887 



HEMiCLfDiA, R. Brown. Supposed to be from 

 Jiemisus, half, and Meio, to shut up. Linn. 4, 

 Or. 1, Nat. Or. Proteacece. A fine greenhouse 

 plant ; for culture and propagation, see Dry- 

 dndra. Synonyme: 1, Drydndra falcata. 

 Baxter! 1 . Yel. . 6, G. Ev. S. 3 Lucky Bay . 1824 



Hemid^smus, R. Brown. From hemisus, half, 

 and desmos, a tie ; alluding to the filaments. 

 Linn. 5, Or. 2, Nat. Or. Asclepiadacece. A 

 pretty climbing species, thriving well in a 

 mixture of loam and peat ; young plants are 

 very freely obtained by cuttings planted in 

 sand, under a glass, in a little heat. A decoc- 

 tion of the roots is recommended by European 

 practitioners in cutaneous diseases, scrofula, 

 and "venereal affections, 

 indicus . . Green . 5, S. Ev. Tw. 6 Ceylon . . 1796 



HEMiDfcTYON, Prcsl. From hemi, half, and 

 diktyon, a net 5 fronds. Linn. 24, Or. 1, Nat. 

 Or. Polypodiacem. Stove fern, 

 marginatum . Brown . 6, S. Her. P. 1 S. Amer. 



Hemigenia, G. Don. From hemi, half, and 

 genea, an offspring ; in reference to only one 

 of the cells of each anther being fertile. Linn. 

 14, Or. , 1, Nat. Or. Lamiacece. For culture, 

 &c, see ProstantMra. 

 purpurea . . Purple . 4, G. Ev. S. N. S. W. 1824 



Hemig6nium, /. Smith. From hemi, half, and 

 gonia, an angle ; fronds. Linn. 24, Or. 1, Nat. 

 Or. Polypodidcecc. Stove fern. Synonyme ; 1 

 Aspidium caducum. 

 caduoum 1 . . Bra. yel. 5, S. Her. P. 1 W. Indies. 



