3880 MR. A. B. RENDLE ON THE 
Naivasha and Baringo Valley. 
Hypoais Gregoriana, sp.u., Kikuyu escarpment, Kedong River 
S. of L. Naivasha: near H. laikipiensis, mihi. 
Crinum, sp. 
Asparagus plumosus, Baker, Kikuyu escarpment. S. Africa to 
Mt. Milanji. . 
A. medeoloides, Thunb., Kikuyu escarpment. S. Africa. 
Bulbine asphodeloides, Schult. f., Kikuyu escarpment. S. and 
Tropical Africa. 
Typha angustifolia, Linn., east side of Lake Losuguta. 
Temperate and warmer parts of northern hemisphere. 
HyYDROCHARIDES. 
LAGAROSIPHON TENUIS, sp. nov. (Pl. XX XI. figs.1-7.) Planta 
tenuis bryoides ; foliis confertis linearibus, a basi sensim angus- 
tatis, apice obtusiusculis, margine a dentibus validis ascendentibus 
instructis, stipulis minutis subulatis; floribus famineis axillari- 
bus ; spatha oblonga, apice bifida edentata vel dentibus perpaucis 
munita; perianthii tubo vix unciali, segmentis oblongis semi- 
linearibus ; ovario elongato-pyriformi. 
Hab. Kinani, East Ongalea Mountains, 2200 ft.: J. W. 
Gregory, 1893. 
A slender delicate plant, recalling Z. Nyasse, Ridl., in habit. 
The crowded leaves are 4-5 lines long, 3-4 line broad at the 
base, tapering gradually to the subobtuse apex, with about 30 
upwardly directed teeth on each side. The teeth are situated on 
small few-celled elevations of the leaf-margin ; the normal leaf- 
cells extend to beneath the epidermis, there being no distinctive 
hypodermal layers as in L. Schweinfurthii and others. Only 
female flowers were present, situated in the axils of ordinary 
leaves. The oblong spathe is 1 line long and bifid for 3 its 
length from the apex; generally entire, though sometimes with 
a few scattered teeth. The perianth-tube is about # in. long, 
the expanded flower 1 line in diameter, the individual oblong 
petals 3 line long. 
Resembles L. Nyassa, Ridl., but the female flowers are much 
longer, with oblong, not lanceolate petals, while the leaf-teeth 
are emergences, not simple outgrowths of the epidermis as in 
that species. L. Schweinfurthii, Casp., has larger, more densely 
toothed leaves with obovate obtuse stipules. 
rise ieneens nite reer eet nai 
