320 MR. W. MITTEN ON" MOSSES A^V 



latis ventralibus o*bsiti ; folia conferte imbricata fere ubique 

 sequalia deltoidea, apice truncata rotundata pauci breviter den- 

 tata integerrimaye, niargine ventrali usque ad basin rotundatum 

 pluries smuato undulata integerrlma, dorsali integerrlma basi 

 flexura quasi rolundato dilatato caulem cum basis folii oppositi 

 omnino tegente, involucralia conformia apice margine ventrali 

 labiisque perianthii obovati subtruncati undulati spinoso-dentata. 

 Sah. Kilimanjaro, Bishop Haniiington. Usagara Mountains, 

 Last. Madagascar, Baron and Pool, Mauritius, Thomas. 



PLAaiocHiLA JAYA^iCA, Necs et Mont. 



Hah, Kilimanjaro. Gathered in S. Africa by Cooper, and on 

 Table Mountain bv Mr. Eaton. 



P. Lastif, sp. n. (PL XVII. figs. 1-3.) Eami ramulis 

 paucis irregularibus subpinnati ; folia patula divaricatave ovato- 

 oblonga, apice satis angusta dentibus variis, margine dorsali 

 recurva decurrente, ventrali e medio ad apicem paucidentata, 

 basin versus rotundata plus minusve dentata, e cellulis rotundatis 

 areolata involucralia latiora, margine ventrali spinoso-dentata, 

 periantliium obovatum,ala dorsali apice dentata, labiis subtruncatis 

 spinoso-dentatis ; spicse niasculse apicibus foliorum rotundatis 

 divaricato-recurvis rotundatis integerrimis. 



Sah. Usagara Mountains, Last. 



This somewhat resembles small P. cristata^ Sw., and P. NecTce- 

 Toidea, Mitt, in Trans. Linn. Soc. xxiii. t. 6 ; but it differs in the 

 more entire leaves of a different form. 



P. Baeteet, sp. n. (PL XYI. figs. 11, 12.) Eami dichotomi 

 furcatimvae divisi ; folia imbricata divergentia ovato-ligulata, 

 apice rotundata margineque ventrali breviter dentata basin versus 

 dentibus longioribus magis approximatis, dorsali recurva in caulem 

 longum descendente basi denticulis circiter tribus ciliata. 



TLah. Sierra Leone. Barter. 



P. DICEANA, sp. n. (PI. XVII. figs. 4-6.) Eami furcati ; 

 folia imbricata a basi latiora patente sensini angustata subligulata 

 curvata falcata divergentia, apice in crura duo subulata siuu lato 

 divisa, margine dorsali integerrima, ventrali dente brevi versus 

 medium imposito integexTimove involucralia, margine ventrali 

 inferiore spinoso-dentato ; perianthium obovatum, dorso ala con- 

 tinua integerrima, labiis rotundatis bieviter ciliato-dentatis. 



