1900 SUPPLEMENT-—RECENT INTRODUCTIONS, &C. 31 
Akebia—continued. 
three- to five-foliolate. To the species described on p. 45, 
Vol. I., the following should be added : 
A. lobata (lobed). jl. pale purple, in a nodding or pendulous 
raceme; males numerous, {in. across; females few, below the 
males, 4in. to lin. across. January. J. long-petiolate, tri- 
foliolate, 3in. to Sin. long; leaflets petiolulate, lin. to 2in. long, 
broadly ovate, repand-lobulate. China and Japan, 1895. A 
tall, climbing shrub. (B. M. 7485.) 
ALA (pl. Ale). A wing. 
ALANGIUM. Orv. Oornaceer. This genus em- 
braces eight or ten species, natives of tropical Asia and 
Africa. 
ALARCONIA. A synonym of Wyethia (which see). 
ALATERNUS. See Rhamnus Alaternus. 
ALBERTA (named in honour of Albertus Magnus, 
of the house of Bolstadt, a famous philosopher and 
theologian of the thirteenth century, who wrote a treatise 
in seven books entitled ‘‘De Vegetabilibus et Plantis”’). 
Orp. Rubiacez. A small genus (two species) of orna- 
mental, stove or greenhouse shrubs or small trees, one 
native of Madagascar and the other of Natal. Flowers 
small or rather large, in terminal panicles; calyx often 
coloured when fruiting, ten-ribbed, five-lobed; corolla 
tubular, elongated; stamens five. Fruit small, dry, two- 
celled. Leaves opposite, sub-sessile or petiolate. For 
culture of the only species introduced, see Vangueria. 
(arge). (f., corolla reddish-purple, silky-pubescent, 
lin. long, the. segments obliquely ovate, acute. January and 
February. fr. oval, fin. long; calyx lobes scarlet, nearly lin. 
long. 7. shortly petiolate, oblong or elliptic-oblong, 4in. to Sin. 
long, ltin. to Zin. broad, flat, with recurved margins. Young 
branches reddish-brown. Natal, 1891. (B. M. 7454.) 
ALBIKIA. A synonym of Hypolytrum (which see), 
ALBINA. A synonym of Alpinia (which see). 
ALBIZZIA. This genus embraces about two dozen 
species, natives of the warmer regions of Asia, Africa, and 
Australia. Flowers generally five-parted, hermaphrodite 
or rarely polygamous; stamens white, pink, or (rarely) 
purple, elongated, usually numerous; peduncles axillary 
or paniculate at the tips of the branches, bearing globose 
heads or cylindrical spikes. Pods broadly linear, straight, 
flat-compressed, slender. Leaves bipinnate ; leaflets small 
and many pairs or ample and few. 
A. Lebbek (Lebbek). The correct name of Acacia Lebbek. 
ALBUCA. About thirty species are known, all 
natives of South and tropical Africa. To those described 
on p. 45, Vol. I., the following should be added. They 
are Cape plants, and require greenhouse treatment except 
where otherwise stated. See also Urginea. 
A. Allenz (Mrs. Allen’s). fl. greenish-white, about jin. long, 
oe in a lax raceme. 7. about six, lanceolate, flaccid, 
gla rous, lft. to 14ft. long, l4in. to 2in. broad. Stem 3ft. to 4ft. 
igh. Bulb globose, 2in. or more in diameter. Zanzibar, 1887. 
A stove species, allied to A. Wakejieldii. 
A. Buchanani (Buchanan's). jl. yellow, racemose, borne on a 
long, thin scape. /. linear. Bulb small, ovoid. Nyassaland, 
1891. A stove species, nearly allied to 4. Wakejieldii. 
A SE doe (corymbose-flowered). 
corymb; perianth yellow, banded green, the inner segments 
hooded, connivent ; outer stamens having no anthers; peduncle 
6in. long. July. J. six to eight, terete, lft. or more im length. 
Jl. five or six in a lax 
A. fibrosa (fibrous). #. three or four in a lax raceme; perianth 
pale yellow, broadly keeled with green, less than lin. long; 
eduncle flexuous, glaucous, lft. long. August. J. two, terete, 
right panes glabrous, lft. or more in length, din. in diameter at 
base. ulb small, the outer tunics clothed with persistent 
bristles, ljin. to 2in. long. 1874. 
A. Gardeni (Garden's). Asynonym of Speirantha convallarioides. 
A. glandulosa (glandular). i. very fragrant, permanently erect ; 
perianth white, banded with green, 3in. long; raceme corymbose, 
three-flowered ; peduncle lft. long, densely glandular. April. J. 
two or three, 6in. long, linear at base, tin. to 4in. broad, rounded 
at back. Bulb globose, lin. in diameter. 1875. 
A. juncifolia (Rush-leaved). f. greenish-yellow, inodorous, 
drooping, ten to fifteen in a deltoid panicle Jin. to 5in. long; 
erianth lin. long. August. J. twenty to thirty, sub-terete, lft. 
ong, tin. to 4in. in diameter, tapering toa point. 1876. (B. M. 
Albuca — continued. 
A. ee ae (many-leaved). #. few in a corymbose raceme; 
perianth white, banded with green, permanently erect ; peduncle 
terete, 6in. long. March. /. twelve to fifteen, subulate,; bricht 
green, glabrous, 2in. to Sin long, half a line broad. Bulb ovoid, 
Sin. to 2in. in diameter. 1874. ; 
A. trichophylla (hair-leaved). jl. few, arranged in a lax raceme 
6in. long ; perianth bright yellow, jin. long; peduncle as long as 
the leaves. J. seven or eight, erect, sub-terete, Sin. to 10in. long, 
xin. in diameter, deeply channelled down the face. Bulb 3in. in 
jameter. 1889. 
A. Wakefieldii (Wakefield’s). 1. pale green, ten to twelve ina 
lax raceme 6in. to Sin. long; perianth lin. long, the inner seg- 
ments bordered white; scape longer than the leaves. Autumn. 
1. four or five, linear-ensiform, flaccid, glabrous, lft. to 14ft. long, 
lin. broad at base, tapering toa point. Eastern tropical Africa, 
1878. Stove. (B. M. 6429.) 
ALCHORNEA (commemorative of Stanesby Alchorne, 
Assay-master in the Mint, who died in 1799 or 1800). 
Including Celebogyne. ORD. Euphorbiaceer. A genus 
comprising about thirty species of stove or greenhouse 
trees or shrubs, inhabiting the warmer regions. Flowers 
dicecious or rarely moneecious, apetalous, in axillary or 
lateral spikes. Leaves alternate, entire or toothed. Only 
one species, A. ilicifolia, calls for mention here, and that 
not for any particular horticultural merit, but on account 
of the curious fact of its having reproduced itself from 
seed in European gardens (including Kew) through several 
generations from female plants alone, without the inter- 
vention of any male flowers. 
ALECTOROLOPHUS. A synonym of Rhinan- 
thus (which see). 
ALEGRIA. A synonym of Luhea (which see). 
ALETRIS. Syn. Stachyopogon. About eight species 
are included in this genus; they are found in North 
America, Japan, China, India, and Borneo. 
ALEURITOPTERIS. Sce Cheilanthes. 
ALEURODES, also called ALEYRODES. Orv. 
Hemiptera. A genus of very minute insects (about Hin.) 
allied to the Aphides and the Scales. From the former, 
however, they differ in having broad powdery wings, as well 
as in their life-cycle; and from the latter in being four- 
winged in both sexes. The head is minute, and the eyes 
are divided. The antennz, contrary to the general belief, 
are seven-jointed, though the articulations are not readily 
recognised. Signoret is one of the few naturalists who 
eredit the insect with having seven-joints to the antennz ; 
the majority, and among them Bouché and Westwood, give 
but six. Signoret’s description is as follows: 1, short, 
globose; 2, twice as long, clavate; 3, two and a-half 
times as long as 2, nearly as long as the last four, undu- 
lated, very small at its base, afterwards thicker; 4 and 7, 
of equal length, and shortest; 5 and 6, of equal length, and 
a little longer than 4 and 7; 5, globose at the extremity; 
the last five circularly striate. The wings are, as before 
stated, four in number, oval in shape, and when at rest are 
disposed nearly horizontally. The legs are short, simple, 
two-jointed ; the tarsi are two-jointed and provided with 
two hooks. The larva is short, oval, flat, and generally 
seale-like in appearance. The pupa is fixed, and enveloped 
in the skin of the larva. There is, however, little to 
distinguish the one from the other generically. There are 
about twenty-five species, and all are extremely prolific. 
The most noteworthy species is A. proletella (A. cheli- 
domi) which infests a number of subjects, including such 
dissimilar ones as the Oak and the Cabbage. It is, how- 
ever, in connection with the latter that the insect has 
chiefly been noticed in gardens. Mr. J. W. Douglas a few 
years ago described a new species, A. ribiwm, which he 
found on both Red and Black Currants. Fortunately this 
has not occurred in sufficient numbers to be regarded as 
pests. See also Cabbage Powdered Wing and Snowy 
Fly. 
ALFONSIA. A synonym of Elezis (which see). 
ALGA. A synonym of Zostera (which see). 
