1614 



HULSEA 



HUNNEMANNIA 



nana, Gray. Fig. 1922 (adapted from Pacific R. R. 

 Report). Sts. depressed, leafy at summit, sticky- 

 hairy: Ivs. pinnatifid or incised; petiole long-margined: 

 peduncle 1-2 in. long; involucral scales in 2 series; 

 rays 20-30. Calif., north. N. TAYLOR.! 



HUMATA (Latin, of the earth; referring to the creep- 

 ing habit of the rhizomes). Polypodiacese. Ferns of 

 small stature related to Davallia and sometimes 

 included with that genus, with small, thick, deltoid 

 Ivs., with the indusium tough, suborbicular or reni- 

 form, attached by a broad base and free at the apex 

 and sides.-y-Some 20 species are known, mostly from 

 the E. Indies. For cult., see Davallia. 



Tyermannii, Moore (Davdllia Tyermannii, Baker). 

 BEAR'S-FOOT FERN. Rpotstock wide-creeping, densely 

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

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

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

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

 G.C. 1871:871. 



H. heterophylla, Smith. (Davallia angustata, Wallich.). A 

 small creeping plant with long slender rhizomes and simple entire 

 or slightly lobed Ivs. 3-6 in. long, 1 in. broad; fertile If. narrower, 

 with deep sinuate clefts along the sides. Malaya and Polynesia. 

 H. repens, Diels (Davallia alpina, Blume). Small plant: Ivs. 

 dimorphic, the sterile 1-pinnate, the pinna? divided into many 

 small segms. ; fertile Ivs. reduced nearly to the rachis and midveins 

 of the pinnae; sori borne on spine-like branches of the latter. E. 



Asia> L. M. UNDERWOOD. 



HUMEA (after Lady Hume). Compdsitae. Herbs or 

 shrubs, one of the most popular of which is a half- 

 hardy biennial Australian plant, growing 5 or 6 feet 

 high, cultivated for the grass-like beauty of its large, 

 loose, much-branched, drooping panicles. 



Flowers exclusively tubular and hermaphrodite, 1-4 

 in a small head; involucre narrow, with scarious or 

 petaloid, non-radiating 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. 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, but the 

 common species is a striking plant. 



Sow seed from July 1 to September 1. Keep young 

 plants during winter in very cool house in preference 

 to frames, in northern latitudes, on account of losing 

 so much foliage 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 ma- 

 nure. They are gross feeders and growers, requiring 

 plenty of water and good feeding. Good plants in 

 10-inch pots are very ornamental 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 repotted until an 8-inch 

 pot is needed. They should not be syringed except 

 when growing rapidly in warm weather. In June the 



Slants can be placed in a subtropical bed that is shielded 

 om high winds, and staked. The foliage has a peculiar 

 and agreeable scent. (A. P. Meredith.) 



elegans, Smith. Lower Ivs. ovate-lanceolate or 

 oblong, acuminate: st. clasping or decurrent, &-10 in. 

 long, wrinkled: fls. variously described as brownish red, 

 pink, ruby-red and rose, very numerous, in long loose, 

 gracefully pendulous panicles, much overtopping the 

 rest of the plant. R.H. 1862, pp. 9, 10; 1895, p. 459. 

 S.H. 1, p. 154. H. dlbida, Hort., is presumably a whi- 

 tish-fid, form of this species, and should therefore be 

 v -ailed var. albida. Var. gigantea, Hort. Much taller 

 than type, reaching 20 ft. in height, having larger Ivs. 

 and panicles. The species itself is said by Bentham to 

 attain 5 or 6 ft. or more in Austral. N. TAYLOR.! 



HUMULUS (Latin name, of doubtful origin). Mora- 

 cese. HOP. Two twining vines, with rough, opposite, 

 palmately lobed or divided leaves, grown for ornament 

 and one also for "hops." 



Dioecious, the fls. in axillary clusters; staminate fls. 

 with 5 erect stamens and 5-parted calyx, in little droop- 

 ing 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 over- 

 lapping bracts, the whole making a cone-like catkin 

 which, when becoming very large, is a "hop." One 

 species in N. Amer. and Eurasia, and one in Japan and 

 Manchuria. 



A. Plant bearing hops, the pistillate catkin greatly 

 enlarging in fr. 



Lupulus, Linn. COMMON HOP. 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 dentate, petioles 

 long: staminate fls. in panicles 2-6 in. long: hops 

 (mature pistillate catkins) oblong or ovoid, loose and 



E apery, straw-yellow, often 2 in. or more long, glandu- 

 ir and odoriferous. Native along rivers and in thick- 

 ets in the northern states and Canada, and southward 

 in the Alleghanies and Rockies; occurs as far south as 

 Fla. and Ariz. Much cult, for "hops," used in brew- 

 ing, and extensively run wild from cult, plants. The 

 hop makes an excellent arbor or screen plant. Var. 

 afcreus has yellow foliage. G.W. 10, p. 501. 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. See Cyclo. Amer. Agric., Vol. 

 II, p. 380. The Rocky Mt. form, common in Colo, 

 and New Mex., has been separated as var. neo-mexi- 

 canus, Nels. & Ckll., and it is in the trade: it has 

 more deeply divided Ivs. and more sharply acuminate 

 bracts than the ordinary hop; If .-segms. from broad- 

 lanceolate to nearly linear, acuminate, with resin par- 

 ticles on the lower surface. 



AA. Plant not bearing hops, the pistillate catkin not 

 greatly enlarging in fr. 



japonicus, 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 

 glandular. Japan, China (perhaps intro.) Manchuria; 

 somewhat run wild from cult, in this country. G.C. 

 II. 24:716. Intro, to general cult, in 1886, and now one 

 of the most popular 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 cult, and usually seeds 

 itself. Var. variegatus, Hort., is the most popular 

 form. Gng. 1:241. A.F. 8:489. The foliage is vari- 

 ously streaked and splashed with white. Seeds of this 

 variety will give a large percentage of variegated forms, 

 and the plants usually show interesting variations. H. 

 japonicus is more popular 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, and the heavy odor is enjoyed by some persons. 



L. H. B. 



HUNNEMANNIA (John Hunneman, English friend 

 of botany, died 1839). Papaveracese. MEXICAN TULIP 

 POPPY. One yellow-flowered herb closely allied to the 

 California poppy (Eschscholtzia) and of similar garden 

 value, where hardy. 



The genus agrees with Eschscholtzia 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 Eschscholtzia which covers the young fl. 

 like a candle extinguisher: torus scarcely dilated; sepals 



