COLLECTED IN TROPICAL AFRICA 
Intermediate between P. convolution, Brid. and P. macrophyllum, Dzy. et Molk. In the firm 
57 
specimens vary from 4 to 5 inches in height. 
- 
Tab. VI. fig. 20. 1. Plant (natural size) ; 2. leaf (magnified). 
pedes. The 
Plagiochila, Nees et Mont. 
P. neckeroidea, Mitten. Caule repente, ramis iterato dichotomis ; foliis basi imbricatis 
divaricatis ovato-lanceolatis apice obtusis bidentatisve, margine dorsali recurvo inte- 
gerrimo, ventrali apiceque parce dentatis, cellulis parvis oblongis interstitiis angustis ; 
involucralibus dentibus spinosioribus ; perianthio obovato truncato compresso, labiis 
spinoso-dentatis. 
Hab. On trees. Niger (Barter). 
Very nearly resembling P. abrupta, L. et L., but with leaves composed of cells very much smaller and 
with thin wails. From P. disticha, L. et L. (gathered also by Barter), it is immediately distinguished by 
the plants being scarcely altered when dry, and the different form of the perianth. The more robust 
stems have much the appearance of P. cristata Sw., but they are far smaller and the leaves are not 
cristatebehind. 
Tab. VI. fig. 21. 1. Plant (natural size) ; 2. leaves, 3. perianth and involucral leaf (magnified). 
Chiloscyphus, Corda. 
C. oblongifolitjs, Mitten. Caule repente parce ramoso ; foliis horizon talibus divergentibus 
oblongis parallelogrammaticis apice integris sinuatis uni- bi- tridenticulatis, cellulis 
interstitiis obscuris grossiusculis, amphigastriis parvis bipartitis laciniis extrorsum 
unidentatis, uno latere in folium anguste decurrente; perianthio (juvenili) laciniis 
dentatis. 
Hab. On moist rocks, Onitscha; and on oil palms, Brass; Niger (Barter). 
substance and truncate at their apices. 
•gutus 
w— w< < ouu u uiitttic at men apices. 
Tab. VI. fig. 22. 1. Plant (natural size) ; 2. portion of stem with leaves and amphigastria ; 3. the perianth 
' spread open. 
Lepedozia, Nees, Ldbg. et Gottsche 
-L. succida, Mitten. Caule procumbente inordinate pinnato, ramis decurvis fiagelliformi- 
attenuatis ; foliis caulinis erecto-patentibus caulem latitudine vix superantibus ovali- 
oblongis, apice insequaliter brevi bi- tri- quadridentatis, amphigastriis parvis quadri- 
partitis ; rameis majoribus imbricatis rhomboideo-ovalibus, apice superior e sinu parvo 
bidentatis, ca3teroquin integerrimis, amphigastriis parvis trifidis, cellulis oblongis 
magnis pellucidis. 
Hab. On moist rocks. Nupe ; Niger (Barter). 
Somewhat resembling L. Wallichiana, Gottsche, and L. centipes, Taylor, but remarkable for the rhom- 
boidal subentire leaves of its branches. 
Tab. VI. fig. 23. 1. Plant (natural size) ; 2. a portion of the stem, 3. portion of a branch with leaves 
(magnified). 
VOL. XXIII. 
I 
