Viricularia. | XCIV. LENTIBULARIEE (STAPF). 491 
long, slightly larger in fruit. Corolla lilac with a violet mark on the 
palate, 4-5 lin. long; upper lip ovate, 2-lobed to the middle, 14 lin. 
long, lobes obtuse ; lower lip reniform-orbicular, 24 lin. long, 4 lin.. 
broad, sides turned up; palate rather flat with 2 slight papillose 
gibbosities ; spur cylindric, obtuse, 3-44 lin. long, almost 14 lin. in 
diam., obtuse, slightly curved upwards. Anthers } lin. in diam. ; fila- 
ments filiform, 3 lin. long. Style distinct, over } lin. in the fruit ;. 
upper stigmatic lip obscure ; lower ovate, large. Capsule globose, 1 lin. 
in diam. ; seeds subprismatic, more or less 4—5-angular, about + lin. in 
diam., 1, lin. high, angles narrowly winged ; testa reticulate. Kmbryo: 
slightly concave on the top face.—U. benjaminiana, Kam. in Engl. 
Jahrb. xxxiii. 109, and in Baum, Kunene-Samb. Exped. 37%, not of 
Oliv. 
Lower Guinea. Angola: Mossamedes; by the Longa River, near Minnesera,. 
4160 ft., Baum, 656 ! 
The American (. Lenjaminiana, Oliv., is closely allied to VU. villosula, but has 
longer and much narrower floats, and smaller flowers (up to 3 lin. long), of which 
a are often as many as 10 in an inflorescence, borne on short pedicels (1-14 lin. 
ong). 
26. U. foliosa, Linn. Sp. Pl. ed.ii. 26. An aquatic, floating herb, 
Stolons up to several yards long, 1-1} lin. thick, giving off at intervals 
of 2 or more inches solitary or fascicled branches ; branches spreading 
up to over 1 foot long, densely or loosely leafy except towards the 
base. Leaves all of one kind or only differing in the presence or 
absence of bladders, alternate, up to 3 in. long, compound-pinnate,. 
lowest pinna at or near the base; ultimate segments capillary, sparsely 
and minutely setose, primary (rarely also the secondary) midribs 
occasionally dilated and spongy. Bladders very numerous on some (in 
extreme cases most of the segments replaced by bladders), sparse or 
0 on other leaves, subobliquely globose, $—} lin. in diam., mouth trun- 
cate with a few long branched delicate cilia. Raceme up to 12-flowered ; 
peduncle rising from the branch-fascicles, { to over 1 ft. long, slender 
or sometimes inflated; bracts elliptic or ovate, obtuse or subacute,. 
1}-21 lin. long, membranous, adpressed to the pedicel, lowest 1-3 
barren ; bracteoles 0; pedicels filiform, 2}—5 lin. long (in the African 
Specimens), obliquely erect during flowering, then gradually recurving 
and slightly lengthening, not thickened upwards. Sepals broad-ovate,. 
connate at the base, obtuse or subacute, 1}-2 lin. long, membranous, 
scarcely enlarging after flowering. Corolla yellow, 5-8 lin. long ; 
upper lip rotundate-ovate, 2-3 lin. long; lower lip broad, suborbicular, 
submarginate, 4—5 lin. long, adpressed to, and as long as, the lower 
lip, often minutely 2-lobed. Filaments curved, wider upwards, 1 lin. 
long; anther 4 lin. long, cells quite confluent. Ovary globose ; es 
very short but distinct ; upper lip of stigma 0; lower lip large, pei 
ovate. Capsule globose, black, bursting in water by the expansion vid 
the mucilaginous placenta, 2-3 lin. in diam. ; seeds 4-8, lenticular, very 
flat, 3-11 lin. in. diam., with a narrow membranous wing all round. 
Embryo discoid, slightly concave on the top with several obscure le«t- 
