SUPPLEMENT. 
HELICOPHYLLUM (from heliv, helikos, spiral, and 
phyllon, a leaf; alluding to the lateral segments of the 
older leaves). Orp. Aroidee (Aracew). A small genus 
(four or five species) of Asiatic, greenhouse or hardy, 
tuberous herbs. Flowers on an appendiculate spadix, the 
males and females remote, with subulate, neuter organs 
between; spadix much shorter than the spathe, slender or 
robust; spathe marcescent, the tube oblong, sub-ventricose, 
persistent, the lamina oblong, erect; peduncle much 
shorter than the leaves. Leaves long-petiolate, thickly 
coriaceous, hastate or sagittate, or the young ones hastate 
and the older ones pedatisect with segments confluent at 
base; lateral segments often spirally twisted. H. Alberti 
proves hardy in a sunny border, in a well-drained, 
sandy loam. It may be propagated from seeds, or by 
means of the small tuber offsets. 
H. Alberti (Albert Regel’s). /l. very fetid; spadix 5in. long, 
slender, the appendix bluish-black, ragged at tip; spathe 7in. 
long, the tube pale green, the lamina dark maroon-purple within, 
pale green outside, very thick, acuminate. May. /. 4in. long, 
hastate, acuminate, undulated, with two lateral, horn-like, hori- 
zontal, basal lobes, and between them two linear, erect ones; 
petioles stout, 4in. long. Bokhara, 1884. (B. M. 6969.) 
HELIOPHILA. To the species described on p. 130, 
Vol. IT., the following should now be added: 
H. scandens (climbing). /. white, sometimes tinted rose, large, 
racemose. J. lanceolate. Stems slender, twining. 1887. An 
interesting plant. 
HELIOTROPIUM. To the species and varieties 
described on p. 131. Vol. II., the following should now be 
added : 
H. incanum (hoary). /. in dichotomously corymbose spikes ; 
corolla white, twice as long as the calyx, rather hispid outside ; 
peduncles hairy. June. /. thick, ovate, acute, crenulated, 
wrinkled above and lined with retrograde asperities, softer and 
hoary beneath. Stem shrubby. /. 2ft. to 3ft. Peru. Green- 
house. 
H.i. glabrum (smooth). fl. purple. /. rough, broadly elliptic, 
destitute of hairs. 1884. (G.C.n.s., xxii., p. 809.) 
HELONIOPSIS (from Helonias, and opsis, resem- 
blance; alluding to the affinity of the genera). Syn. 
Sugerokia. Orv. Liliaceew. A small genus (four species) 
of greenhouse or hardy perennials, natives of Japan and 
Formosa. Flowers solitary or few at the tip of the scape, 
rather large, slightly nodding ; perianth segments distinct 
or scarcely connate at base, oblong or narrow, sub-equal, 
spreading; stamens six; scape erect, simple. Leaves 
radical, petiolate, oblong or lanceolate, scarious-sheathed 
at base. Rhizome short, horizontal. H. japonica, the only 
species in cultivation, thrives in any fairly good garden 
soil, and may be increased by divisions. 
H. japonica (Japanese). /l., perianth rose-coloured, five to six 
lines long, the segments free, narrow; stamens very shortly 
exserted ; pedicels usually longer than the flowers ; raceme short, 
two to_ten-flowered. April. J. oblanceolate, at the flowering 
period 3in. to 4in. long and lin. broad, brownish towards the tips. 
Japan, 1881. Wrongly called H. wmbellata in G. C. ser. iii., 
vol. i., p. 711. (B. M. 6986.) 
HEMEROCALLIS. This genus embraces five 
species, natives of Central Europe and temperate Asia, 
Japan especially. To those described on p. 134, Vol. IT., 
the following variety should now be added: 
H. fulva longituba (long-tubed). 1. orange-yellow, the slender 
tubular portion of the perianth half as long as the segments. 
Japan, 1885. (R. G. 11a?) 
HEMIGRAPHIS (from hemigraphos, half-written ; 
in allusion to the shape of the corolla). Orp. Acanthacee. 
A genus embracing about a score species of stove or 
greenhouse, annual or perennial herbs, inhabiting the East 
Indies, the Malayan Archipelago, China, and Japan. 
Flowers rather small, solitary or rarely twin, spicate ; 
calyx deeply five-cleft or five-parted, the segments often 
more or less connate below the middle; corolla tube 
slender, shortly enlarged above, the limb of five rounded, 
spreading lobes; stamens four, didynamous, included ; 
bracts often imbricated; bracteoles minute or wanting. 
Leaves opposite, entire or toothed. For culture of the 
| 
551 
Hemigraphis—continued. 
species described below, see the allied genus Ruellia, 
on p. 333, Vol. IIT. 
H.colorata (coloured). /. white; corolla narrow, six to seven 
lineslong ; spikes terminal, tetragonal, pedunculate. 1. cordate- 
ovate, crenate, bullate, 2}in. long, l}in. broad, tinted silvery-grey 
on the upper surface, purple beneath; petioles ljin. long. Stem 
creeping, and, as well as the petioles, loosely hairy. India, 1885. 
Stove perennial. 
H. latebrosa (secret). The correct name of the plant described 
on p. 333, Vol. IIL, as Ruellia latebrosa. 
HEMIPILIA (from hemi, half, and pilion, a cap; 
alluding to the covering of the pollen miss). Orp. 
Orchideew. A small genus (only two species) of stove 
Orchids, with the habit of Habenaria rotundifolia, natives 
of the East Indies. Flowers few in a raceme; sepals 
nearly equal in length, the dorsal one concave, the lateral 
ones spreading, oblique; petals smaller, undivided; lip 
continuous with the column, spreading, rather broad, the 
base produced in a spur; column very short. Stems 
having one leaf at the base. For culture of H. calophylla, 
see Pogonia, on p. 175, Vol. III. 
H. calophylia (beautiful-leaved). f., sepals white and green, 
rarely purple ; petals similar, but much smaller; lip dark vinous- 
purple, }in. broad; raceme six to eight-flowered ; scape 5in. to 
Tin. high, green, spotted reddish-brown. July. JU. 2in. to 3in. 
long, 1jin. to l}in. broad, sessile on the tuber, the acute base 
sunk in the ground, dark green, mottled brown. Moulmein, 1886. 
(B. M. 6920.) 
HEPTAPLEURUM. To the species described on 
p. 136, Vol. II., the following should now be added: 
H. vitiense (Fiji). /. three to seven in an umbel. J. digitate ; 
leaflets obovate-oblong, obtuse, narrowed to the petiole, entire, 
with horizontally spreading veins. Fiji, 1887. Syn. Agalma 
vitiensis. 
HESPERALOE (from hesperos, Western, and Aloe; 
alluding to the aspect of the plant and its native habitat). 
Orv. Liliacee. A monotypic genus. The species is a 
very striking and interesting, greenhouse plant having 
a leafy stem or a very short caudex. For culture, see 
Yucca, on p. 227. 
H. Engelmanni (Engelmann’s). A synonym of H. yuccifolia. 
H. yuccifolia (Yucca-leaved). fl. pale rose-coloured, fascicled at 
the sides of the rachis or branches of the loose racemes; perianth 
cylindrical, straight, the segments narrow, sub-equal; s 
six; peduncle or scape leafless, 3ft. to 4ft. high, simple or with a 
few straight branches, 1. clustered, linear, channelled, rigid, the 
margins white-filamentose. Texas, 1882. Syn. H. Engelmanni. 
HESPEROCALLIS (from hesperos, Western, and 
kallos, beauty; in allusion to the habitat of the plant, 
Hemerocallis, to which the present genus bears some 
resemblance, being an Eastern one). Orb. Liliacew. A 
monotypic genus. The species is a greenhouse or half- 
hardy plant, with a short, woody caudex, allied to Hemevo- 
callis. For culture, see Yucca, on p. 227. 
H. undulata (waved). jl. whitish, sweet-scented, large, shortly 
pedicellate, in a simple raceme ; perianth funnel-shaped, the tube 
cylindrical, the lobes oblong-spathulate, longer than the tube, 
erecto-patent; stamens six; bracts under the pedicels scariose, 
sometimes a few leafy ones below the inflorescence ; scape erect, 
simple. February and March. J. radical, linear, elongated, 
Ce rather thick, broadly edged with white. California, 
1882. 
HEXISIA (from evisoein, to be equal or like; in 
reference to the conformity of the lip with the sepals). 
Syn. Euothonea. Orv. Orchidee. A small genus (three 
or four species) of epiphytal Orchids, inhabiting tro- 
pical America from Brazil to Mexico. Flowers mediocre: 
sepals nearly equal, narrow, the dorsal one free, the lateral 
ones produced in a very short chin; petals resembling the 
dorsal sepal; lip erect, connate with the column at base, 
the lateral lobes obscure, the middle one lanceolate, 
spreading, equalling the sepals; column short; pollen 
masses four; racemes terminal, few-flowered; peduncles 
short. Leaves narrow, rather rigid. Only one species is 
known in gardens. For culture, see Ornithidium, on 
p. 524, Vol. II. 
H, bidentata (two-toothed). fl. bright scarlet, about }in. in 
diameter; sepals and petals linear, acute; lip narrow obovate- 
