HIPPEASTRUM 



HOFFMANNIA 



751 



Distinct, and one of the best. Apparently not in the 

 Amer. trade, but it has been used in hybridizing. 



11. prdcerum, Lem. {AmarifUis Rcii/ueri, Hook. f.). 

 Bulb ovoid, with a neck 10-12 in. long, on the apex of 

 which — as on a trunk — the drooping, curling, bulf-edged 

 Ivs. are borne (the Ivs. 16-20 in. long): scape 12-18 in. 

 high, 2-edged, green, bearing 2-3 horizontal pale lilac 

 fis. 4-5 in. across : segments oblauceolate, acute, not 

 1 in. broad ; throat without a star ; stamens much 

 shorter than the perianth ; stigma capitate. Brazil. 

 J. H. 11:408. F.S. 20:2077-8. B.M. 5883. Gn. 45:959.- 

 One of the most distinct of the genus. In the Amer. 

 trade. Sometimes called "Blue Amaryllis" and "Em- 

 press of Brazil." Plant out for late summer or fall 

 bloom, in a warm, sunny place. Keep bulb dry until 

 late spring. 



cc. Stigma markedly 3-parted. 



12. nitilum, Herb. Bulb nearly globular, 2-3 in. in 

 diam.. stuloniferous, with short neck: Ivs. 6-8, elongat- 

 ing after flowering, bright green, 1 ft. long and an inch 

 or more wide: scape as long as the Ivs., somewhat com- 

 pressed, glaucous, bearing 2-4 red fls.: perianth tube 

 % in. long, green, with a minute crown in the throat ; 

 segments oblong, acute, crimson and green keeled ; 

 stamens shorter than the perianth, the filaments red. 

 Braz. B.R. 1:23. L.B.O. 15:1449. -Incultivation chiefly 

 known in the var. fulgldum, Baker (ff. fiilgidum, 

 Herb.), which is in all parts larger, deep crimson, the 

 fi. -segments 3-5 in. long. B.R. ::{:22(;. B.iAl. 1943, as 

 Amiirfflh's tnhn'tKa: 2475 as JI. snhhnHnif/im. Var. 

 croc&tum, Baker, is as large as var. fulifldittn, except in 

 its Hs., which are smaller, with undulate segments, saf- 

 fron-colored. B.R. 1:38. Var. citrlnum. Baker, has 

 bright yellow fls. Var. acuminatum, Roem. (A. and H. 

 puiverult^-nfn). Fis. pink and segments acute. B.R. 

 7:534; 14:1188. L.B.C. 5:484. B.M. 2273. 



13. vitt^tum, Herb. Fig. 10C9. Bulb globular, 3 in. 

 in diam. : Ivs. ii-St usually appearing after the fls., bright 

 green, 2 ft. long: scape often 3 ft. high, bearing 3-6 

 horizontal or declined striped white-edged fls. 4-5-in. 

 across: tube about 1 in. long, with an obscure crown or 

 crest at the throat; segments obovate-oblong and acute, 

 1% in. or less broad, the under color whitish but over- 

 laid with red stripes, the keel white; stamens shorter 

 than the limb. Peru; but once thought to be S. African. 

 B.M. 129. G.C. III. 24:119.-The commonest species- 

 type in Amer. gardens, now cult, in many forms. It 

 seems to have entered freely into hybrids, and some of 

 the forms now passing as H. vittatum are perhaps mon- 

 grels. The double red feathery stripes on each side of 

 the more or less irregular-edged segments distinguish 

 this species from its congeners. 



1070. Hippeastrum Johnsoni (X K)- 



14. H. J6hnsoni, Bury. Fig. 1070. Fls, deep dull red, 

 each segment with a white stripe down the keel. A very 

 profuse bloomer, and withstands much abuse. It is the 

 most popular single Amaryllid in this country, and is 

 particularly prized for window-gardens. It is the oldest 

 hybrid, having been raised by one Johnson, an English 

 watchmaker, who, in 1799, crossed H. Hegince with ff. 

 vittatum. 



The three following Hlppeastr 

 48 



offered in Dutch- 



Ameriean lists: H. ddvenum, Herb. Belongs to the narrow* 

 Ivd. section of the genus: Ivs. linear, glaucous: fls. 2-6, about 

 2 in. long, yellow or red, on slender pedicels, the segments ob- 

 long-linear and acute ; stigma 3-parted. Chile. B.M. 1125. 

 B.R. 10:849. Aform with pale yellow fls. is var. pallidus, Herb. 

 L.B.C. 18:1760.— if. pra^cnse. Baker. Also liuear-lvd.: fls. 2-4. 

 briglit scurlet, the veiy short tube with small scales in the 

 throat, the segments 2/^ in. long ; stigma capitate. Chile. 

 B.R. 28:35.— S. rdseum, Baker. Lvs. narrow-linear, glaucous, 

 1 ft. long, with the fls.: scape 6 in. high, bearing 1 or 2 small 

 bright red fls.: stigma 3-parted. Chile. 



Latin-form trade names to be accounted for : atrosanguin- 

 eum, cardinAlis. crdcea, delicdta. formdsa (hybrid), Gravlnce 

 (Craveana, Gravesiana, Graveana), Lindeni, macrdntha, re- 

 fiilgens, riXhis (hybrid), rubra striata, Williamsii. ]j_ jj^ g^ 



HIPP6PHAE {Greek, horse-killing ; alluding to the 

 berries, which are somewhat poisonous). JfJleugndvece. 

 This includes the Sea Buckthorn, a hardy European 

 and mid-Asian shrub valued for its clusters of bright 

 orange-red berries about the size of a pea, which per- 

 sist all fall and winter. It also has the silvery or gray 

 foliage which makes several members of this family 

 useful in fiue landscape effects. This family has only 2 

 other genera, Elseagnus and Shepherdia (including the 

 Buffalo Berry). Hippophae and Elaeagnus have alter- 

 nate lvs. and 4 stamens, but the former has unisexual 

 and mostly dioecious fls., while the latter has hermaph- 

 rodite fls. Shepherdia has opposite lvs., 8 stamens and 

 dioecious fls. Hippophae has 2 species of shrubs or 

 small trees: branches often spiny, covered with minute 

 stellate hairs, as are all the young parts: fls. borne at 

 the base of small lateral branches; staminate ones iu 

 catkins, sessile in the axils of 2 deciduous bracts; fila- 

 ments none; pistillate fls. pedicelled, solitary in the 

 axils of Ivs.; perianth top-shaped, in 2 divisions: ovary 

 1-celled, ]-ovuled: style large, club-shaped. 



In order to secure a good setting of berries, one or two 

 staminate plants should be placed near every group of 

 a dozen pistillate ones. When the shrubs are without 

 berries the expert nurseryman can distinguish the two 

 sexes by the more upright growth of the staminate and 

 the more twiggy growth of the pistillate plants. The 

 redder the berries the better for ornamental purposes. 

 The berries are somewhat poisonous, but are eaten by 

 birds. Though essentially a seashore plant, it is easily 

 cult, inland in common garden soil, and thrives even in 

 barren, sandy lands. It inhabits cool moving sands and 

 the alluvium of torrents. When grown abroad to hold 

 shifting sands it makes a straggling, stunted bush 2 ft. 

 or more high. Under favorable conditions it may be 

 grown into a tree 20 ft. high. The suckers may become 

 so numerous as to be troublesome. The numerous 

 spines which terminate the branches and the interlacibg 

 stems suggest its use for hedges. It is propagated by 

 layers, suckers, root-cuttings and seeds. 



rhamnoides, Linn. Sea Buckthorn. Swallow 

 Thorn, Lvs. appearing before the fls., grayish green 

 above, silvery green below and scattered with reddish 

 scales below: fls. yellowish, borne in clusters of 2-3 in 

 May : fr. berry-like, orange-yellow, acid, maturing in 

 Sept. G.M. 37:791. Gn. 49:1050 (with a fine colored 

 plate and thorough appreciation by W. Goldring), and 

 54, p. 396. 



H. salicifdlia, D.Don, has larger lvs., less densely coated with 

 silvery scales. Nepal. Not cult. j^^ p^ Wyman. 



HOBBLEBUSH. Viburnum lantanoides. 



HOES. See Tools. 



HOFFMANNIA (Georg Franz Hoffmann, 1760-1826, 



professor of botany at Gottingen). Including Campy- 

 lobotrys and Higginsia. RubiAcea'. About 15 tropical 

 American herbs or shrubs, with opposite or verticillate 

 lvs. and small white, yellow or red fls., cult, for the very 

 showy foliage. Corolla tubular, with 4 (rarely 5) oblong 

 or linear obtuse lobes; stamens 4: ring-like disk about 

 the 2-3-loculed ovary: style filiform, the stigma 2-lobed. 

 The Hoffmannias require warm temperature, although 

 they may be plunged in the open in the summer. Well 

 grown specimens are also adapted to the decoration of 

 window-gardens and living rooms. Propagated by cut- 

 tings. Hoffmannias are very showy foliage plants. 



