1612 



HOWEA 



HOYA 



Wales, and from the latter port to either London or 

 New York. This long voyage is a severe test of the 

 vitality of such seeds, and frequently results in faulty 

 germination, the average of germination seldom exceed- 

 ing 50 per cent, and is often much less. Two heavy 

 shipments of Howea seeds are made each year, the 

 first installment arriving in February or March, and 

 the second in September or October. Many growers 

 favor the autumn shipment of these seeds as giving 

 the best results. The seeds should be sown at once 

 on their arrival, the practice followed by large growers 

 being that of broadcasting the seeds on a side-bench in 

 a warm greenhouse on 2 to 3 inches of hght soil, then 

 covering them with 1 inch of the same compost, water- 

 ing liberally and keeping up a bottom heat of about 80°. 

 Under such treatment some of the seeds may germinate 

 in two months, but others in the same lot may not 

 Btart for eight or nine months, from which it will be 

 seen that the operation extends over a considerable 

 period of time. The seedlings should be potted into 



1921. Howea Belmoreana, one of the most popular palms. 



small pots when the first leaf is expanded, kept moist 

 and given a night temperature of 65°, the greenhouse 

 in which they are placed being moderately shaded. In 

 three to four months the young plants should be ready 

 for shifting into 3-inch pots if properly cared for; from 

 this time forward they do not require a higher night 

 temperature than 60°. The howeas are not very particu- 

 lar in regard to soil, a rich, light loam answering very 

 well for them, but a very stiff soil may be improved by 

 the addition of one-fourth part of peat, and in all 

 cases a reasonable proportion of fertilizers may be 

 used to advantage. Scale insects are the most trouble- 

 some the grower has to contend with, and should be 

 removed as rapidly as possible, else the foliage will be 

 permanently disfigured. Of the two species referred to, 

 H. Belmoreana is perhaps the greater favorite, being 

 more compact in growth and extremely graceful in 

 fohage, a plant of this species of a given age usually 

 carrying a greater number of leaves than one of H. 

 Forsleriana of the same age, and the leaves having 

 more leaflets than those of the latter species. The 

 seeds of the two species are very similar in appearance, 

 though those of H. Belmoreana frequently average a 



larger size, and while those of the last-named species 

 require about three years to mature on the tree, the 

 seeds of H. Forsleriana ripen in about twelve months. 

 For house cultm-e by amateurs, see Palms. (W. H. 

 Taplin.) 



Behnoreana, Bece. (Kentia Belmoreana, F. Muell. 

 Grisebachia Belmoreami, H. Wendl. & Drude). Curly 

 Palm. Fig. 1921. Described and distinguished above. 

 B.M. 7018. R.H. 1897:256 and p. 257. G.C. III. 

 8:75. I.H. 21:191. A.G. 13:141; 16:345: Mn. 9:2.5. 

 Gn.M. 6:288. Var. variegata, Hort. Advertised 1895. 



Forsteriana, Becc. (Kenlia Forsleriana, F. Muell. 

 Grisebachia Forsteriana, H. Wendl. & Drude). Flat 

 or Thatch-leaf Palm. G.C. III. 8:75, 533. S.H. 2:53. 

 A.G. 16:.346. A.F. 4:565; 14:701. G. 8:581. Gn. 73, p. 

 111. Gn.M. 6:289. N. Taylor.j 



HOYA (Thomas Hoy was once gardener to the Duke 

 of Northumberland). Asclepiaddcese. Tropical climb- 

 ing or traihng evergreen shrubs, bearing thick, opposite 

 leaves and odd, often showy flowers in unibel-hkc clus- 

 ters, grown under glass and one of them sometimes in 

 window-gardens. 



Corolla rotate, .5-lobed, thick and more or less waxy 

 in appearance: crown rotate, of 5 thick and compressed 

 fleshy appendages: pollen-masses short, fixed by their 

 base in pairs to the 5 glands of the stigma: follicles 

 acuminate, smooth: sts. twining, or cUmbing by means 

 of roots. — Species perhaps 100, E. Asia to Austral. ; 

 difficult to determine in herbarium specimens. 



Hoyas are summer-blooming plants, of compara- 

 tively easy culture. They need an intermediate or 

 warm temperature. Let them rest or remain very slow 

 in winter (.50° in a dryish place), but start them into 

 growth toward spring. In the summer they are some- 

 times plunged in the border, but better results are to 

 be expected, as a rule, by keeping them in pots in the 

 conservatory. In their growing and blooming season, 

 give plenty of sun and air. They propagate by cuttings 

 of the top-growth in spring, and also by layering. The 

 latter method is particularly adaptable to H. carnosa 

 and other species that climb by means of roots. The 

 only species commonly known is H. carnosa. 



a. Plant distinctly climbing. 



carnosa, R. Br. {H. Motoskei, Teijsm.). Wax-Plant. 

 Twiner, and attaching itself to support by means of 

 roots; ordinarily grown as a pot- or tub-plant, and 

 reaching 5-8 ft. high, but growing twice and more this 

 height when it has the opportunity: glabrous: Ivs. 

 succulent and .shining, ovate-oblong, acute, short- 

 stalked, entire: fls. white with pink center, fragrant, 

 in a.xillary or inter-petiolar umbels, the crown-segms. 

 very convex, and spreading into a horizontal star. S. 

 China and Austral. B.M. 788 (as Asclepias carnosa). 

 Gn. 69, p. 119. G. 25:123. A.G. 18:34. — The com- 

 mon species, and often seen in window-gardens. After 

 the bloom is over (in summer) keep the plant in a cool 

 place, that it may remain half-dormant. In late winter 

 or spring, start it into growth. Do not cut off the spur 

 which remains after the fls, pass, for this spur boars 

 fls. again. The wax-plant is easy to manage, and it 

 improves with age. Often trained as a permanent 

 cover for a glasshouse wall. The chief drawback is 

 the attacks of mealy-bug, but they may be kept off 

 with a fine stream of water from the hose, and by 

 handwork. In the South, it is nearly everblooming. 

 There is a form (var. variegata) with handsome varie- 

 gated Ivs. Lowe 44. 



globulosa, Hook. f. Hairy: Ivs. elliptic-oblong or 

 long-oblang, acuminate, rounded at the base, the mid- 

 rib very stout, the petiole an inch or less long: fls. pale 

 straw- or cream-color, the star-Uke crown-segms. white, 

 with pink at the base, borne in dense, globular umbels: 

 folhcles a foot or more long. Sikkim. F.M. 1880:406. 



