•280 
FLOBA OF ADEN. 
Flowers in terminal racemes or spikes, supported by bracts and often 
also by bracteoles, hermaphrodite, zygomorphic. Calyx inferior, gamose- 
palous, 2 — 5-toothed or -lobe (3, rarely truncate, or spathaceous and open in 
front, or consisting of 2 lateral 1 — 2-toothed or linear divisions which are 
either quite free or more or less united at the base in front. Corolla 
gamopetalous, tubular or funnel-shaped in the upper part, usually curved ; 
limb oblique, 2 lipped or nearly equally 5-lobed ; upper lip entire or 
bilobed, lower lip 3-lobed, lobes imbricate, the upper inside. Stamens 
4, didynamous, usually inserted below the middle of the corolla tube and 
enclosed in it ; filaments filiform ; anthers dorsifixed, conniving or 
cohering (by means of hairs) in pairs ; cells parallel or slightly diverging, 
often mucronate, longitudinally dehiscent, both fertile or one empty. 
Disk hypogynous, obscure or produced anticously into a nectarial gland. 
Ovary superior, 1 -celled ; carpels 2, median, rarely 3 ; style simple, 
"terminal ; stigma orbicular or 2 — 3-lobed. Placentas 4, separate or con- 
tiguous or partly fused in pairs ; ovules very numerous, anatropous. 
Capsule 1 -celled, more or less dehiscing with 2 valves. Seeds very 
^numerous, small ; testa often foveolate-reticulate ; endosperm fleshy. 
Embryo globose, of few cells, undifferentiated. 
Genera 11, species about 150. 
Distribution : — Almost exclusively in the northern hemisphere, 
-particularly in the warm temperate regions. 
1. Cistanclie Hoffmgg, et Link. 
Parasitic plants, variously coloured, destitute of chlorophyll, glabrous 
or cobwebby. Stems succulent, often bulbously thickened at the base, 
.-simple. Leaves reduced to fleshy scales. 
Flowers bracteate and 2-braeteolate, in dense spikes, rather large, white, 
yellow, violet, or purplish. Calyx persistent, tubular-campanulate, 
4- or 5-lobed ; lobes obtuse, rounded, subequal or the two posticous 
^narrower. Corolla tubular below, more or less funnel-shaped above, 
more or less curved or at length abruptly bent ; limb spreading, oblique, 
5- lobed, lobes broad, equal or nearly so. Stamens 4, didynamous, sub- 
-exserted, inserted deep down in the corolla-tube ; anthers usually densely 
bearded and coherent by the hairs ; cells parallel, often acute or mucro- 
nate at the base. Ovary 1-celled, with 4 distinct placentas, many-ovuled ; 
style curved at the apex ; stigma large, orbicular. 
Capsule 2-valved, dehiscing in the median plane. Seeds very numer- 
ous, minute, foveolate-reticulate. 
Species about 12. 
Distribution : — Mediterranean region, N. Africa, Western, Tropical 
:and Central Asia. 
