1450 



HELICHRYSUM 



HELICONIA 



forms are often known as H. monstrbsum, Hort. Other 

 portraits of this species will be found in B.R. 24:58. 

 R.H. 1851:101. 



BB. Heads medium to small, in clusters, 

 c. Color yellow or orange. 



arenarium, DC. YELLOW EVERLASTING. A foot or 

 less high, herbaceous: Ivs. plane, white-woolly, the 

 lower ones oblong-obovate and long-attenuated into a 

 petiole, the upper ones linear-lanceolate and acute: 

 heads globular, in compact little corymbs, bright yellow. 

 Perennial, in sand, France. Apparently not cult, in 

 this country. See Everlastings, p. 1183. 



orientale, Gaertn. (Gnaphalium orientdle, Linn.). 

 St. simple, 1^ ft. or less tall: Ivs. oval-oblong to lanceo- 

 late, obtuse, sessile, rather small: heads bright yellow, 

 small, globular, in corymbs. S. Eu. to Asia Minor. 

 G. 1:805. Much cult, in Medit. regions, but little 

 known in this country. 



apiculatum, D. Don. Perennial, 1-2 ft., tomentose, 

 leafy below: Ivs. lance-spatulate, the base more or less 

 spatulate: heads ^in. across, in small heads or clus- 

 ters, orange-yellow, the scales sharp-pointed. Austral. 

 Little known in this country, and doubtfully hardy 

 north of Philadelphia. 



1799. Helichrysum bracteatum. One of the choicest 

 everlastings. 



cc. Color white or nearly so. 



grandifldrum, Less. Perennial, somewhat woody, 

 decumbent at the base : Ivs. crowded near the base, ses- 

 sile, obovate to oval or oblong, obtuse, woolly on both 

 sides: heads hemispherical, in corymbose clusters, 

 glossy, cream-color, J^in. across. S. Afr. Greenhouse 

 plant north of Washington. 



diosmaefdlium, Sweet (Ozothdmnus rosmarinifblius, 

 Hort.). Tall, upright: Ivs. very small, narrow-linear 

 (3^in. or less long), the margins revolute: heads small 

 and numerous, white. Austral., sometimes grows 20 

 ft. high. Gn. 34:409; 55:222. Cult, in S. Calif, by 

 Franceschi. 



AA. Lvs. ovate or broader: border and vase plants. 



bellidioides, Willd. Slender-stemmed, trailing, nearly 

 woody perennial: Ivs. light green above, woolly be- 

 neath, ovate-spatulate, Y^rY"^- long, flat: heads soli- 

 tary, about J^in. diam., of the "everlasting" type; 

 receptacle convex or nearly conical. New Zeal. G.C. III. 

 53:266,436. Gn. 77, p. 253. G. 35:341. G.M. 56:286. 

 Not common in cult, but useful as a prostrate per- 

 ennial; not hardy N. 



hftmile, Andr. (Aphelexis humilis, Don). A low 

 spreading, greenhouse perennial, with Ivs. lacking 

 tomentum, but sometimes woolly in the axils: Ivs. 

 round-backed, usually K-M m - long: scales of the 

 involucre rosy. S. Afr. A showy, but little-known 

 species. 



petiolatum, DC. (Gnaphalium landtum. Hort.). 

 Tender perennial, cult, for its long, woolly sts. and 

 woolly Ivs., either as an edging in ribbon borders or as 

 an ornament in lawn vases: Ivs. petiolate, ovate and 

 broad at the base, obtuse: heads (not often seen in 

 cult.) in branched cymes, the involucre scales obtuse, 

 cream-white. S. Afr. An old garden plant. Prop, by 

 cuttings from stock plants carried over winter. 



H. Codperi, Harvey. Bush with golden yellow fl.-heads. Afr. 

 H. Guilelmii, Engler. A robust perennial covered with white wool 

 except the fl.-heads. E. Trop. Afr. B.M. 7789. Var. Meyeri, G.C. 

 III. 31, p. 4, note. Fls. arranged more loosely. H. Selago, Benth. 

 & Hook. f. Small, much-branched shrub: fl.-heads small, terminal, 

 sessile, Min. across. New Zeal. H. Volkensii, O. Hoffm. Shrubby, 

 with sts. and branches covered with white shaggy hairs: outer bracts 

 bright rose, inner whitish and longer. E. Afr. G.C. III. 31: 169, desc. 



L. H. B. 



N. TAYLOR, f 

 HELIC6DEA: Billbergia. 



HELICODICEROS (Greek, spirally %-horned). 

 Aracese. Odd spathe-bearing plant, from a tuber, 

 sometimes grown as pot specimens; odor offensive. 



The extraordinary plant shown in Fig. 1800 is known 

 as the "hairy arum" and sold by the bulb-dealers as 

 Arum crinitum. When in flower it has a disgusting 

 odor which attracts carrion flies and bright green insects 

 as uncanny as the plant itself. The plant is the only 

 species in its genus, the hairiness of the spadix being a 

 very distinct character. Helicodiceros and Dracuncu- 

 lus are alike in having few ovules, which are fastened 

 at the top and bottom of the cell, but in the latter the 

 staminate and pistillate fls. are close together, while in 

 the former they are separated by a sterile portion. 

 Arum differs from both genera in having the ovules 

 fastened in 2 series at the side of the cell. The Ivs. of 

 Arum are spear- or arrow-shaped, while in the other 

 two they are pedately cut. 



This plant is worth growing once, since it is one of 

 the curiosities of horticulture. It may be secured from 

 bulb-dealers in the autumn and flowered under glass 

 in the spring. It is a most vile-smelling plant when in 

 full flower. The plucky artist who drew the accom- 

 panying picture of this arum wrote at the bottom of his 

 drawing, "Air 'em." 



muscivorus, Engler (H. crinitus, Schott. Arum crini- 

 tum, Ait. Dracunculus crinitus, Schott.). Fig. 1800. 

 Height 1 Yi ft. : spathe-limb purple, covered with purple 

 hairs. Corsica. B.R. 831. F.S. 5:445. G. 11:585; 

 19 : 515. WILHELM MILLER. 



HELICONIA (Mt. Helicon, in Greece, seat of the 

 Muses). Musacese. Foliage plants allied to Musa, 

 grown in a warmhouse along with alocasias, anthur- 

 iums and calatheas. 



From Musa, Heliconia differs chiefly in having a dry, 



