GENTIANA 
389 
and Tasmania. G. procumbens L. is the winter green, checker-berry or 
partridge-berry of the U.S. The fruit resembles a berry, but is really 
a capsule, enclosed in the fleshy calyx but not adhering to it. G. 
Shallon Pursh is the Sallal or shallon of N.W. Am., whose edible 
fruit deserves to be more widely known and cultivated. An oil is 
distilled from the plant of some sp. 
Gaura Linn. Onagraceae (v). 20 sp. N. Am. The anthers are 
chambered up by horizontal septa in each loc. (cf. Circaea). Nut. 
Gaya H. B. et K. Malvaceae (11). 6 sp. trop. Am. 
Gaylussacia H. B. et K. Ericaceae (in. 7). Over 40 sp. Am. (huckle- 
berry). The 5 loc. of the ovary are made into 10 by partitions 
growing out from the midribs of the cpls., as in Linum. 
Gazania Gaertn. Compositae (x). 24 sp. Cape Colony. 
Geissoloma Lindl. ex Kunth. G. marginatum Kunth, Cape Col., a 
small xerophytic shrub is the only sp. The genus forms the order 
Geissolomaceae. 
Geissolomaceae. Dicotyledons (Archichl. Thymelaeales). 1 gen. 
Geissoloma. A monotypic order united to Penaeaceae by Benth.- 
Hooker. 
Gelsemium Juss. Loganiaceae. 2 sp. N. Am., As. G. sempervirens 
Ait. is known as Carolina jasmine. The peduncle bears a large 
number of bracteoles. 
Genista Linn. Leguminosae (in. 3). 80 sp. Eur., N. Afr., W. As.; 
3 in Brit. G. anglica L. (needle-gorse or petty whin) has large thorns 
(branches). The fir. has an explosive mechanism, typical of many of 
the order (see Leguminosae). In G. tinctoria L., the dyer’s green- 
weed (see Muller’s Fcrt . of Firs. p. 189), there is no honey; the style 
and tube of sta. are enclosed in the keel, which is united along the top 
seam as well as the bottom. The sta. shed their pollen almost in the 
apex of the keel, but not so near it as to pollinate the stigma. When 
the flr. opens there is a tension of the sta. -tube on the lower side 
tending to bend it upwards ; this is resisted by an opposite one in the 
keel and wings, but if an insect alight on the wings and press them 
down, the upper seam of the keel gives way and an explosion follows. 
In it the style flies out, striking the under side of the insect, thus 
probably becoming cross-pollinated, and is followed by a shower of 
pollen which gives the insect a fresh coating to take to another flr. 
A yellow dye is obtained from the firs, of this sp., which when 
mixed with woad gives a fine green (Kendal green). 
Gsntiana Tourn. ex Linn. Gentianaceae (1. 3). 300 sp. chiefly alpine, 
Eur., As., N. Am., Andes, Austr., N.Z. ; 5 sp. of gentian in Brit. 
Most are alpine plants of tufted growth (p. 181). The firs, are of 
much interest (see Nat. Pjl., Muller’s Fert. of Firs . , Alp enblumen, 
&c.). The genus divides into two subgenera, according to the position 
of the nectaries — in Eugentiana on the base of the ovary, in Gentian- 
elia on the base of the corolla. In each section we find an ascending 
