780 



HUM AT A 



that genus, with small, thick, deltoid Ivs., with the in- 

 dusium tough, suborbicular or reniform, attached by a 

 broad base and free at the apex and sides. Some 20 spe- 

 cies are known, mostly from the East Indies. 1 or cul- 

 ture, see Davallia. 



Tyermanni, Moore (Davallia Tijermanni, Baker). 

 BEAK'S FOOT FERN. Rootstock wide-creeping, densely 

 covered with linear white scales; Ivs. 4-6 in. long, del- 

 toid, 3-4-pinnatifld ; lower pinnae largest, the lowest 

 pinnules cuneate-oblong or deltoid; sori at the base of 

 the ultimate lobes less than a line broad. Central China. 

 G.C. 1871:871. L. M. UNDERWOOD. 



HUMBLE PLANT. Mimosa pudica. 



HUMEA (after Lady Hume). Comp6sita>. This in- 

 cludes a half-hardy biennial Australian plant, growing 

 5 or 6 ft. high, cult, for the grass-like beauty of its 

 large, loose, much-branched, drooping panicles. The 

 genus has no near allies of garden value. It belongs to 

 a group of 6 Australian genera which have no pappus. 

 Humea has nothing of the typical beauty of the com- 

 mon garden composites, since it has no rays. Its fls. 

 are exclusively tubular and hermaphrodite, 1-4 in a 

 small head. Other important generic characters are the 

 narrow involucre with scarious or petaloid, non-radiat- 

 ing bracts. Three, at any rate, of the 4 other species 

 are shrubs, with fls. in dense corymbs and involucral 

 bracts rigid or petal-like, while in H. elegans the bracts 

 are thin and scarious. 



Sow seed from July 1 to Sept. 1. Keep young plants 

 during winter in very cool house in preference to frames, 

 in northern latitudes, on account of losing so much foli- 

 age through damping. In spring, or when signs of growth 

 are taking place, repot into larger pots, using a good, rich 

 loam, which has had plenty of manure. They are gross 

 feeders and growers, requiring plenty of water and 

 good feeding. Good plants in 10-in. pots are very or- 

 namental for conservatory or piazza work. The young 

 plants need plenty of light and air, and should be kept 

 nearly dry during the winter. In spring they should 

 be started into growth gradually, and successively re- 

 potted until an 8-in. pot is needed. They should not 

 be syringed except when growing rapidly in warm 

 weather. In June the plants can be placed in a sub- 

 tropical bed that is shielded from high winds, and staked. 

 The foliage has a peculiar and agreeable scent. 



elegans, Smith. Lower Ivs. ovate-lanceolate or oblong, 

 acuminate, stem clasping or decurrent, 6-10 in. long, 

 wrinkled: fls. variously described as brownish red, 

 pink, ruby-red and rose. H. dlbidn, Hort., is pre- 

 sumably a whitish fld. form of this species, and should 

 therefore be called var. albida. R.H. 1862, pp. 9-10 and 

 1895, p. 459. A> P MEREDITH and W. M. 



HUMULUS (old Latin name). Urticacece. HOP. Two 

 or three twining vines, with rough, opposite, palmately 

 lobed or divided Ivs. and dioecious fls. in axillary clus- 

 ters. Staminate fls. with 5 erect stamens and 5-parted 

 calyx, in little drooping, tassel-like racemes: pistillate 

 fls. with an entire calyx or perianth closely investing 

 the ovary, which bears 2 long stigmas, the fls. in pairs 

 under large overlapping bracts, the whole making a 

 cone-like catkin which, when becoming very large, is 

 a "bop." 



A. Plant bearing hops, the pistillate catkin greatly 

 enlarging in fruit. 



Lupulus, Linn. COMMON HOP. Native to Europe and 

 North America, and long cult, for the hops, which are 

 used in the brewing of beer: it is a perennial herb: 

 shoots often grow 25-30 ft. long in the season: rough- 

 hairy: Ivs. ovate or orbicular-ovate in general outline, 

 deeply 3-lobed (sometimes 5-7-lobed), or the upper 

 ones not lobed, margins strongly and uniformly den- 

 tate, petioles long: staminate fls. in panicles 2-6 in. 

 long: hops (mature pistillate catkins) oblong or ovoid, 

 loose and papery, straw-yellow, often 2 in. ormorelong, 

 glandular and odoriferous. Native along rivers and in 

 thickets in the northern states, and southward in the 

 Alleghanies and Rockies. Much cultivated for Hops, and 

 extensively run wild from cultivated plants. The Hop 



HYACINTHUS 



makes an excellent arbor or screen plant. Recent Euro- 

 pean literature mentions a var. aureus, with yellow foli- 

 age. The Hop grows readily from cuttings of the shoots, 

 which spring from the crown; also by seeds, but the 

 latter do not reproduce the particular varieties or 

 strains. As a field crop, the Hop is not a horticultural 

 subject, and is not discussed here. 



AA. Plant not bearing hops, the pistillate catkin not 



greatly enlarging in fruit. 



Jap6nicus, Sieb. & Zucc. Annual (or at least treated 

 as such): foliage very like the last, but usually more 

 deeply cut and not less than 5-lobed: catkins not gland- 

 ular. Japan. G.C. II. 24:716. Int. to general cult, in 

 1886, and now one of the most popular of all climbing 

 herbs. It is a very quick grower, plants 10-20 ft. long 

 coming from seed sown in early May. It is very easy of 

 cultivation, and often seeds itself. Var. variegatus, 

 Hort., is the most popular form. Gng. 1:241. A.F. 

 8:489. The foliage is variously streaked and splashed 

 with white. Seeds of this variety will give a large per- 

 centage of variegated forms, and the plants usually 

 show interesting variations. H. Japoniciis is more pop- 

 ular as an ornamental vine than H. Lupulus, because it 

 grows so quickly from seeds, and also because it has 

 such interesting variegated forms; but H. Lupulus has 

 a distinct charm in its great hanging Hops. j j< jj. g 



HUNNEMANNIA (John Hunneman, English friend 

 of botany, d. 1839). Papaveracece. This includes a fine 

 yellow-fld. herb closely allied to the California Poppy 

 (Eschscholzia)andof the same garden value. It is treated 

 as a hardy annual. The genus has but 1 species, a na- 

 tive of Mexico, and agrees with Eschscholzia in having 

 much-cut foliage and spreading lobes of the stigma, but 

 differs in having separate sepals instead of the peculiar 

 hood-like calyx of Eschscholzia, which covers the young 

 flower like a candle extinguisher. The only other genus 

 in the Hunnemannia tribe is Dendromecon, a shrub 

 with entire Ivs., separate sepals and 2 erect, stigmatic 

 lobes. For culture, see Anmials. 



fumariaefolia, Sweet. Lvs. triternately divided : pe- 

 duncles solitary, terminal : fls. 2 in. or more across ; 

 petals 4 ; stamens numerous. B.M. 3061. Sold as 

 Giant Yellow Tulip Poppy. w. M. 



In our trial grounds during 1898, this was one of the 

 showiest and most satisfactory plants in over 400 trials. 

 The seed was sown early in May, and by the middle of 

 July the plants were covered with their large yellow 

 flowers, and they were never out of flower until hard 

 frost. The plants have a bushy habit and beautiful, 

 feathery, glaucous foliage. The flowers have wavy bor- 

 ders, and at times stand up like tulips. 



W. F. DREER. 



HUSK TOMATO. Physalis. 

 HYACINTH. See Hyacinthtis, below. 

 HYACINTH BEAN. See Dolichos. 

 HYACINTH, GRAPE. See Muscari. 

 HYACINTH, WATER. See mchhornia. 



HYAClNTHUS (name from Greek mythology). Lili- 

 acece. Of Hyacinths there are something over 30 spe- 

 cies, the great part South African. Others inhabit the 

 Mediterranean region, and from this source come the 

 common garden Hyacinths. From related genera, Hya- 

 cinthus is distinguished by the funnel-shaped or bell- 

 shaped flower, the throat not constricted, the lobes 

 shorter than or at most not much exceeding the tube, 

 the 6 stamens attached to the tube or throat and the 

 filaments thread-like or dilated at the base. Bulbous 

 plants with only radical Ivs., and fls. in a raceme or 

 spike. The common Hyacinth is H. orientalis, Linn. 

 (Fig. 1108), with 4-8 thick green Ivs. 8-12 in. long, 

 >2-l%in. wide: scape 8-18 in. tall, stout, bearing an 

 elongated and dense raceme: perianth about 1 in. long, 

 the tube usually ventricose or swollen, the lobes ob- 

 long-spatulate, as long as the tube, in many colors, often 

 double in cult. B.M. 995. F.S. 23:2399-2400 The Hy a- 



