AN ENCYCLOPAEDIA 
OF HORTICULTURE. 127 
Helianthus—continued. 
(B. M. 227, under name of H. multiflorus.) The common form 
is of dwarf habit, with double flowers. 
H. d. multiflorus major only differs from ordinary multiflorus 
in its larger flower-heads. 
H. diffusus (diffuse), A synonym of H. rigidus. 
H. lenticularis (lenticular). fl.-heads yellow, large, drooping ; 
scale of involucre expanded, scabrous on the back. August. l 
alternate, petiolate, ovate, three-nerved, serrate. Stem hispid. 
h. 6ft. North America, 1827. (B. R. 1265.) This is a variety of 
the Common Sunflower, A. annuus. 
H. mollis (soft). fl.-heads yellow. July to Octobér, l. ovate, 
acuminate, three-nerved, closely-serrated, scabrous above, hoary 
and soft beneath. h. 4ft. North America, 1805, . M. 3689.) 
A i / 
— — 
WANNE 
‘Fig. 200. UPPER PORTION OF STEMS, AND DETACHED 
FLOWER-HEAD, OF HELIANTHUS ORGYALIS. 
H. orgyalis (nocturnal).* /l.-heads yellow, comparatively small, 
humerous, forming a large panicle.. Autumn: 1, alternate, nu- 
merous, very narrow and recurved, Sin. to 8in. long, żin. to lin. 
wide. A. 6ft. to 10ft. United States, 1879. Very graceful, and 
one of the best and most useful decorative autumnal-flowering 
plants. Perennial. See Fig. 200. 
H. pubescens (downy). See Wyethia angustifolia, 
H. rigidus (ri ps A. hedds glistening golden-yellow, about 4in. 
across, firma of a deep ray and small disk ; ray-florets 14in, long, 
żin. broad, tips incurved, and edges reflexed ; disk-florets choco- 
late colour; involucre scaly ; peduncles long, hairy, August. 
l, stem ones very hispid, lanceolate, —— y dentate; ical 
ones few, oval, din. or 6in. long. h. sft. North America. 
Perennial. Syn. H. diffusus. (B. M. 2020.) 
H. tuberosus (tuberous). Jerusalem Artichoke. .-heads yellow. 
September and October. l. three-nerved, scabrous ; lower cor- 
date-ovate, upper ovate-acuminate, alternate; petioles ciliated 
at base. Roots creeping, and towards the end of autumn 
produce a number of round, irregular, reddish or yellow tubers, 
clustered together, and of about the size of an ord tato. 
h. 6ft. to 8ft. Upper Canada and United States, 1617. i was 
' cultivated by the aborigines, and the tubers developed. It is 
certainly not South American, as stated in so many books. The 
common name of this species is supposed to be a corruption of 
the Italian Girasole articoceo, or Sunflower Artichoke. For cul- 
ture, see Artichoke, J 
HELICHROA. See Rudbeckia. 
HELICHRYSUM (an old Greek name used by 
Theophrastùs ; the latter part of the word, from chrysos, 
gold, refers to the colour of the flowers). Everlastings. 
SYN. Elichrysum. Orp. Composite. A genus comprising 
260 species of greenhouse or hardy, herbaceous or shrubby 
plants, natives, for the most part, of the Cape of Good 
Hope. Flower-heads large, solitary; involucral bracts 
Scarious, not silvery, spreading or recurved, or clustered 
and small with incurved bracts; pappus rough or sub- 
Helichrysum—continued. 
plumose. Very few species are grown in our gardens. 
Helichrysums succeed best in a rich loamy soil, either when 
grown in pots or planted ont. The annual species, and 
the varieties (of which there are a good number) of H. 
bracteatum, may be readily raised from seed, sown in a 
light heat, in March, and afterwards transplanted, or in 
the open ground at the latter end of that month. The 
greenhouse and half-hardy perennial species may be 
propagated by cuttings, inserted in spring, in a close 
frame, without much heat. Flowers that are intended 
for drying should be gathered when partially unfolded, 
and suspended with their heads downward in a cool shed. 
Any that are required to ripen seed must be allowed to 
remain on the plants until naturally developed. 
H. apiculatum rg age —— — in small 
clustered corymbs, h. Na Australia, 1804, Plant covered with 
a silvery tomentum. Half-hardy perennial. 
arenarium (sand-loving).* Yellow Everlasting, .-heads 
bright golden-yellow, disposed in a compound corymb, Summer, 
l. lanceolate, entire, stem-clasping, blunt and recurved at tips, 
with revolute edges; downy white on both surfaces, pen 
upright, simple, downy. h, 6in. to 12in. Europe, 1739. y 
herbaceous, The flowers of this species are very extensively used 
for decorative purposes, and are popular] known as — ai 
They — largely employed in the making oi funeral wreaths, 
crosses, &c. 
Fic. 201. FLOWERING BRANCH. OF HELICHRYSUM BRACTEATUM, 
racteate).* fl.-heads very various, soli ter- 
— A a lanceolate, entire. A. 3ft. to 4ft. ralia, 
1799. f-hardy annual, See Fig. 201. H. acuminatum, H. 
chrysanthum, H. macrocephalum, are mere forms of this 
species. 
H. b. aureum (golden). jl-heads golden-yellow, See Fig. 202. 
bicolor (two-coloured). /.-heads yellow. August. J, linear- 
gy — ———— obtuse at the base, roughly ciliated; upper 
ones subulate. 1835, (B. R. 1814.) 
H. b. compositum (compound) is a fine “double” strain, with 
yarious-coloured flower-heads. See Fig. 
H. b. macranthum (large-fiowered). /.-heads white, - rose 
coloured outside. (B. R. 1838, 58.) ia 
niveum (snowy).* fl.-heads white, yellow, e, solitary, 
th —* of oa white, conniving, ovate, mucronate, 
June. 1833. (B. M. 3857.) 
