FROM THE CAMEROONS MOUNTAIN AND RIVER NIGER. 167 
R. voLUTA, Tayl. 
Hab. Cameroons Mountain, alt. 8000 feet, Mann. 
Maporueca, Dumort. 
M. SUBDENTATA, sp. nov. Ramis dense piunatim ramosis, foliis diver- 
gentibus oblongis margine ventrali paulo sinuatis apice denticulatis, 
lobulo oblongo spinuloso dentato basi auriculato, amphigastriis breviter 
ovatis apice denticulatis, perianthio ovato apice truncato ore dentato. 
Hab. Cameroons Mountain, alt. 4000 feet, Mann. 
Differs from M. capensis, Gottsche, in the denticulate leaves, lobule, and 
amphigastrium, and smaller cells. In size near to M. platyphylla. 
LEJEUNI1A, Gottsche et Ldbg. 
(Thysananthus, Ldbg.) 
L. rRIQUETRA, sp. nov. Caule dichotomo subpinnatove ramoso, foliis 
ovatis apice angulo subrecto acutis dentatis, margine dorsali sub- 
recto, ventrali incurvo arcuato, lobulo parvo oblongo bidentulo, amphi- 
gastriis obovatis apice emarginatis subdentatis marginibus inferne 
recurvis, cellulis parvis ovali-rotundis, foliis involucralibus majoribus 
apice obtusioribus magis dentatis, amphigastrio magno apice dentato, 
perianthio triquetro angulis superne dentatis. 
Hab. Bagroo River, on bark, Mann. . 
Similar in size and appearance to L. spathulistipa (Thysananthus), Ldbg.; 
but leaves more obtuse, less sharply toothed, and the lobule bidentate. 
(Phragmicoma, Dumort.) 
L. PAPPEANA, (Phragmicoma) Nees ab E. 
Hab. Fernando Po, Mann. 
L. ABBREVIATA, sp. nov. Cespitosa depressa, ramis brevibus sub- 
simplicibus, foliis decurvis oblongis apice rotundatis margine ventrali 
sinuatis basi lobulo parvo oblongo unidentato, cellulis parvis rotun- 
datis, amphigastriis parvis oblatis suborbiculatisve integerrimis, foliis 
involueralibus conformibus, perianthio subterminali obovato com- 
presso dorso uni- ventre bi-carinato, angulis levibus. 
Hab. Bagroo River, on bark, Mann. 
A small brownish-green species, with branches about three lines long 
and scarcely a line wide. It resembles in form L. Sagreana, Mont., and 
L. adplanata, but is more rigid. 
L. MontaGnel, Gottsche. 
Hab. Island of St. Thomas, on Sendtnera diclados, Endl., Mann. 
(Lejeunia, G. et L.) l 
L. ACUTA, sp. nov. Caule repente elongato ramoso, foliis patulis ovatis 
LINN. PROC.—BOTANY, VOL. Vit. P 
