HABENARIA 



HiEMANTHUS 



1425 



pp. Spur not sac-shaped. 



34. unalaschcensis, Wats, Fls. white or greenish; 

 eepals, petals and lip about equal; spur slender, barely 

 to nearly twice longer than lip. Summer. Unalaslca to 

 Cahf. arid Utah.— Near H. 

 elegans, but more slender, 

 with a longer and more 

 open spike. It is referred 

 by some to the genus 

 Herminium. 



35. dUatata, Gray. Fls. 

 greenish white ; lip widened 

 or even auricled at base; 

 spur about as long, in- 

 curved. Summer. Cooler 

 parts of N. Amer. A.G. 

 12:153. B. B. 1:462.— 

 More slender and nar- 

 rower - leaved than H. 

 hyperborea. 



H. geniculdta, D. Don. Slen- 

 der-growing; flg. white with 

 green spur. Burma, Himalayas. 

 — H. idntha. Hook. (Platanthera 

 iantha, Wight), Deciduous, 

 about 16 in. high; fls, shortly 

 stalked, creamy white; Up large, 

 rose-purple and white with 

 crimson-purple dots and streaks ; 

 crest bright yellow. S, India. 

 G.C. III. 54:300.—//. Lugardii. 

 Rolfe. Lva. 2. basal: raceme 

 many-fld. : fls. white, the sty- 

 lodes green: sepals ovate, acute; 

 petals divided into 2 slender 

 lobes. Bechuanaland. B. M. 

 7798. — H. Regnieri. Garden 

 hybrid of H. militaris and H. 

 carnea. — H. Hoebelenii. Rolfe. 

 Similar to H. militaris but 

 dwarfer: tis. vermilion - scarlet: 

 lip broad, deeply cleft at the 1777. Habenaria bracteata. CXM) 

 sides, .\nnam. O.R. 1913:39. 



— H. triquetra, Rolfe. Plant somewhat glaucous: racemes about 

 10-fld.; petals white; sepals light green. Burma. 



T. H. Kearney, Jr. 

 George V. NASH.f 



HABERLEA (after Karl C. Haberle, professor of 

 botany at Pesth, who died in 1831). Gesneriacese. One 

 daintjf httle hardy herbaceous perennial plant, which 

 is tufted and bears in spring a few scapes 4 to 6 inches 

 high, with two to five nodding, violet-colored, five- 

 lobed, tubular flowers, each about 1 inch long and 1 

 inch across. AUied to Ramondia. 



Haberlea has 4 included didynamous stamens and a 

 bell-shaped calyx; the corolla has a conspicuous tube, 

 which is thrust out of the calyx nearly J-2in., and 5 

 lobes, 2 of which are much smaller than the others, 

 while in Ramondia the fl. seems to be wheel-shaped, 

 with 5 equal petals, because the corolla-tube is very 

 short and inconspicuous and the lobes deeply cut. 

 Haberlea was intro. to cult, about 1881 by LeichtUn, 

 and few, if any, of our skilled amateurs know the plant. 

 It is not advertised in Amer. Only 1 species is known, 

 and it is found wild only in a few miles of a single val- 

 ley in Thrace, where it abounds on the southern slope of 

 the Balkans on shaded schistose rocks. Only 4 species 

 of Gesneriaceae are found wild in Eu., and 3 of them, are 

 said to be confined each to one spot. The genus Ram-* 

 ondia has the same habit and is equally desirable. For 

 cult., see Ramondia. 



rhodopensis, Friv. Like a very small gloxinia, and 

 clothed everywhere with soft, spreading hairs, except 

 the coroUa: Ivs. 2-3 in. long, obovate- or ovate-oblong, 

 obtuse, coarsely crenate, thick, leathery, few-nerved: 

 calyx 5-cleft; corolla pale hlac. B.M. 6651. Gn. 67, p. 

 71. G.W. 15:428. R.H. 1906, p. 231. 



WiLHELM Miller. 



HABRANTHUS; Ilippeaslrum. 

 HABROTHAMNUS: Cealrum. 



91 



HACKBERRY: Cellis. 



HACKMATACK, or TAMARACK: Larii americana. 



HACQUETIA (named after Balthasar Hacquet, 

 1740-1815, author of works on alpine plants). Umbel- 

 lifers. Syn. Dondia, Dondisia. A monotypic genus 

 consisting of an herbaceous perennial cult, in the alpine 

 garden and thriving in good stiff loam. Prop, by divi- 

 sion in spring, before growth commences. The species 

 is H. Epipdclis, DC. From 3-8 in. high: Ivs. radical, 

 palmate, deeply lobed: fls. polygamous, in umbels on 

 short pedicels, yellow; involucre of 5-6 large, green 

 Ivs. which are much longer than the umbels. Eu. 

 L.B.C. 19:1832. G.W. 14, p. 197.— Blooms in April 

 and May. 



HjEMANTHUS (blood flower). Amarylliddcex. 

 Blood Lilt. African bulbous plants, of which the 

 greater part are natives of the Cape region; grown 

 indoors. 



Flowers showy, often numerous, in umbels; perianth 

 straight and erect, with a short cylindrical tube; 

 segms. longer than the tube, narrow, equal; stamens 6, 

 inserted in the throat of the perianth, usually exserted, 

 the anthers versatile; style filiform and erect, on a 3- 

 loculed ovary: fr. berry-Uke, indehiscent. The fls. are 

 red or white, on a sohd scape, which is little, if any, 

 longer than the cluster of root-lvs.; they lack the 

 corona of many amarylUdaceous plants. — Probably 

 above 60 species from S. and Trop. Afr. 



Hsemanthuses, Uke most Cape bulbs, are summer- 

 and autumn-flowering; or, when started indoors or in 

 frames, blooming in spring or early summer. The 

 flowers often precede the leaves. The fohage is usually 

 large and luxoiriant, and the scape is often handsomely 

 colored. The flowers are sometimes as much as 2 

 inches across, and produced in great ball-like heads 

 nearly or quite a foot through. Yet the species are 

 essentially curiosities in this country. The culture 

 given nerine suits them well. Their season of growth 

 is usually not more than three or four months, and the 

 remainder of the year they may be laid away in the 

 pots. When growing, give plenty of rather weak 

 liquid manure, keep in an intermediate or warm house, 

 and when in bloom keep them somewhat cooler. Avoid 

 overpotting. 



They ai-e increased by offsets, which should be 

 detached from the parent plants in the spring. The 

 bulbs may be potted singly, or several in a pot, in equal 

 parts of peat and loam, with enough sand to make the 

 compost have a gritty feeUng when passed through the 

 hands. Cover the lower half of the bulb with soil and 

 pot them firmly. Leaf-mold may be used instead of 

 peat, if that soil is not available. Ha-manthus will 

 grow well in a night temperature of 50° to 55°. How- 

 ever, they are often grown 10° lower, but never with 

 the same success. Water the plants carefully until 

 they get into active growth, after which water may be 

 apphed more liberally. Syringe the plants on all bright 

 days, morning an<l noon during their growing period. 

 During the summer months, shade them sUghtly; and 

 when they are in flower the shade may be much heavier. 

 This is of great assistance in making them last longer. 

 As soon as the plants show signs of going to rest, with- 

 hold water, letting the soil become quite dry. Start 

 them into growth in the spring about the first of March. 

 It is not necessary to pot these plants every year, as 

 they flower much better if not disturbed much at the 

 roots. If they are not repotted, water with weak Uquid 

 manure once a week, after they are growing vigorously. 

 These plants are liable to attacks from green-fly and 

 red-spider. Fumigation with tobacco, in any form 

 generally used in greenhouses, will keep the former in 

 check; and on bright days, a careful syringing of the 

 under side of the fohage with clean water will keep the 

 latter from getting a foothold. (George F. Stewart.) 



