108 BULBS AND TUBEROUS-ROOTED PLANTS. 
they commence to grow, then bring forward into a mod- 
erately heated house. 
G. concolor (One-colored).—This is a desirable 
species, if for its color only, which is of a clear bright 
yellow. It has from two to eight flowers on a one-sided 
spike. In the evening it emits a fragrance like the 
common pink. It must be grown in a frame, as its sea- 
son of flowering will not permit of spring planting, and 
it is impatient of greenhouse treatment. 
G. cruentus (Bloody).—Introduced from Natal 
in 1868, and is but little known. ‘The flowers are very 
large, brilliant scarlet, yellowish-white speckled with 
red at the base of the limb, or borne on spikes from six 
to ten inches long. 
G.cuspidatus(Sharp-pointed).—This is a remark- 
able form because of the great length and undulation of 
the petals. The cream-colored flowers are produced in 
May, and have the lower petals marked with a bright 
yellow spot on a rich purple blotch. 
G. c. ventricosus (Swelling).—A variety with 
reddish drooping flowers, with shorter tube and less 
inflated spathes than the type. 
G. debilis (Weak).—A species bearing solitary 
flowers, differing from most others of the genus, as all 
the petals are uniform, spreading open like the Ixias; 
the flowers are white, with rose-colored spots on the two 
inner sections. 
G. dracocephalus (Dragon’s-head) —Introduced 
in 1871. Flowers yellow, closely striped with dull red- 
purple, about two inches long and broad, the lower sec- 
tions bright green, purple spotted. More curious than. 
beautiful. 
G. edulis (Edible).—This species is remarkable 
because of its entire want of beauty. The flowers are 
white, slightly stained with pink and yellow, and so 
much curled that they have a withered appearance as 
