AN ENCYCLOPEDIA OF HORTICULTURE. 



165 



Hymenocallis continued. 



Sin. to 4in. long, and resembling a Giant Trumpet Narcissus. 



(B. M. 2621.) 

 H. Amancaes (Amancaes). fl., corolla bright yellow, large, 



nutant, salver-shaped ; tube green downwards, yellow upwards ; 



segments linear-lanceolate, narrow, distant, stellately expanded ; 



scape compressed, ancipital, even. I, reticulately veined, down- 

 wards flstularly sheathing for about half the length of the scape. 



h. about 2ft. Chili and Peru. Greenhouse. (B. M. 1224, under 



name of Pancratium amancces.) 

 H. amcena (charming).* /. sweet-scented ; tube green-white, 



remainder of the flower white. October. I. six to eight, lOin. 



long, paler beneath, with a thick fleshy midrib, h. 1ft. to 2ft. 



Guiana, 1790. Stove. (B. M. 1467, under name of Pancratium 



imoenum.) 



FIG. 255. HYMENOCALUS ANDREANA. 



H. Andreana (Andre's). /. white, on slender one-flowered scapes 

 shorter than the leaves ; perianth tube green, cylindrical, erect 

 4in. to 5in. long, curved at the top ; limb white ; segments linear 

 Sjin. to 4in. long ; corona broadly funnel-shaped, nearly Sin. long 

 Sin. to 4in. at the throat, with green stripes. I. linear, pale green 

 glabrous, h. IJft. Ecuador, 1876. See Fig. 255. (R. H. 1884 

 468 ; Gn. xxv. 454, under name of Ismene Andreana.) 



H. Borskiana (Borski's). fl. white, with a very thin transparent 

 corona, seven in an umbel. April. I. dull green, 24ft. long. h. 1ft. 

 La Guayra, 1845. Stove. 



H. calathinum (basket-flowered).*/, white, exceedingly fragrant, 

 about Sin. long, expanding in succession with intervals of from ten 

 to fourteen days ; tube and upper part of style green. March and 

 April. I. flstularly sheathing, few, two-ranked, striate-nerved, 

 obtuse. Brazil, 1796. Greenhouse. (B. M. 1561, under name of 

 Pancratium calathinum.) 



H. Choretis (Choretis). fl., tube long, green ; limb white ; corona 

 white, rotate, with a jagged border ; scape three-flowered August. 

 I. strap shaped, erect, glaucous, about 2in. wide and 6in. long. 

 h. 1ft. Mexico, 1837. Stove. SYN. Choretis glauca. 



H. expansa (expanded), fl. sessile, obsoletely three-cornered, 

 pale green, 4jin. long ; segments linear. November. 1. linear- 

 lanceolate, striated, h. 2ft. Native country unknown. Stove. 

 (B. M. 1941, under name of Pancratium expansum.) 



H. Harrisiana (Harris's). /. white ; tube very long and slender, 

 surmounted by six very narrow-linear white segments, and with a 

 cup-shaped corona from whose border project six green stamens 

 at equal distances ; umbels few-flowered. June. I. sessile, h. 1ft. 

 Mexico, 1838. Greenhouse. (B. M. 6562.) 



H. Macleana (McLean's), fl. white ; perianth yellowish, marked 

 with green ; tube slender ; limb and style exceeding the corona. 

 June. 1. broad, arching, deep green, h. 2ft. Lima, 1837. Green- 

 house, nearly hardy. For an account of this plant and its allies, 

 and their uses by the Peruvians, see Stewart's "Visit to the South 

 Seas," or the long extract from that work given in the " Botanical 

 Magazine," Ixv. (B. M. 3675, under name of Ismene Macleana.) 



H. macrostephana (large-crowned).* fl. white, with a green tube, 

 about 3in. long, sweet-scented ; umbel six to eight-flowered. 

 February. I. broad-lanceolate, 24ft. to 3ft. long. h. 2ft. 1879. 

 Stove. (B. M. 6436.) 



Hymenocallis continued. 



H. rotata (rotate), fl. white ; segments of perianth linear-lanceo- 

 late ; corona spreading, closely toothed ; scape two-edged, ten to 

 twelve-flowered, longer than the leaves. May. I. linear-oblong, 

 streaked. A. 14ft. Florida, 1803. Greenhouse. (B. M. 827, under 

 name of Pancratium rotatum.) 



(shewy).* fl. pure white, very fragrant, especially 

 evening ; sr-ape shorter than the leaves, compressed, 

 ancipital. I. very dark green, from 14ft. to 2ft. long, and from 

 Sin. to 4in. across the broadest part. West Indies, 1759. A very 

 desirable stove plant. (B. M. 1453, under name of Pan- 

 cratium speciosum.) 



H. tenuifolia (narrow-leaved), fl. white ; corona large, funnel- 

 shaped, nearly as long as the linear perianth segments ; scape 

 two-edged, one-flowered. June. I. linear, h. 9m. Ecuador, 

 1878. A beautiful greenhouse species. 

 (B. M. 6397, under name of Ismene 

 tenuifolia.) 



H. Virescens (greenish). /. greenish ; 

 tube of perianth about equal to the 

 segments ; sepals and petals ovate. 

 June to August I. green, rather 

 erect, acute, sheathing at the base. 

 h. 1ft. Cusco, 1840. Greenhouse. 

 (B. R. 1841, 12, under name of Ismene 

 virescens.) 



HYMENODES. Membranous 

 in texture. 



HYMENODICTYON (from 

 hymen, a membrane, and dictyon, 

 a net; seeds girded by a reticu- 

 lated membrane). SYN. Kurria. 

 OBD. RubiacecB. A genus com- 

 prising four or five species of stove 

 trees, natives of Asia and tropical 

 Africa. Flowers small, racemosely 

 panicled. Leaves opposite, petio- 

 late, glabrous or pubescent, deci- 

 duous. For culture, see Cin- 

 chona. 



H. excelsum (tall). /., panicles axil- 

 lary and terminal, large. Summer. 

 I. oblong and downy ; floral ones 

 coloured and blistered. h. 30ft. 

 India, 1820. The bark of this species 

 is very astringent, and is largely used 

 for tanning purposes. (B. F. S. 219A, 

 under name of //. utile.) 



HYMENODIUM CRINITUM. A synonym of 

 Acrostichum crinitum. 



HYMENOLEPIS. Included under Acrostichum. 



HYMENOPHYLLUM (from hymen, a membrane, 

 and phyllon, a leaf). Filmy Fern. OBD. Filices. A 

 genus of about eighty species of stove or greenhouse, 

 rarely hardy, ferns. Fronds delicately membranaceous, 

 simple or compound, never with anastomosing veins. Sori 

 marginal, more or less sunk in the frond, or exserted ; 

 involucre inferior, more or less deeply two-lipped or 

 two-valved, toothed or fringed, or entire ; receptacle 

 elongated, columnar, exserted or included. Except where 

 otherwise stated, the species described below require 

 stove treatment. For culture, see Ferns. 



H. abruptum (abrupt), sti. about Jin. long, very slender, fronds 

 iin. to lin. long, Jin. to 4in. broad, oblong, pinnatifld nearly to 

 rachis ; pinnse linear, about Jin. long, sort one or two to a frond, 

 terminal on the apex. West Indies and tropical America, 1859. 

 (H. S. F. i. 31.) 



H. aaruginosum (verdigris-covered).* sti. lin. to 2in. long, hairy. 

 fronds 2in. to 3in. long, about, or scarcely lin. broad, lanceolate 

 -r ovate-acuminate, tripinnatittd ; pinnse often much imbricated, 

 1 ' r ones flabellate, divided dc 



margin pubescent, 

 segments. Tristan d'Acunha. 



H. asplcnioides (Asplenium-like). sti. lin. to 2in. long, slender. 

 fronds 2in. to 4in. long, 4in. to lin. broad, pendulous, oblong in 

 general outline, pinnatifld nearly to rachis. sori one * 

 terminal on the segments. Tropical America, 1859. 



H. bivalve (two-valved). sti. 2in. to 4in. long, wiry, fronds 

 ovate-triangular, tripinnatifid, Sin. to 8in. long, 2m. to 3in. broad ; 

 lower pinnse triangular-acuminate ; ultimate segments linear, two 

 to three lines long, spinuloso-dentate. sori very numerous, often 

 six to eight on a single pinnule. New Zealand. (H. S. F. i. 55o.) 



H. Boryanum (Bory's). A synonym of II. ciliatum. 



the lower ones flabellate, divided 

 face and m 



!own nearly to the rachis ; sur- 

 sori two to twelve, terminal on the 



blong in 

 to four, 



