COLLECTED IN TROPICAL AFRICA. 5o 



F. SCIOPHTLLTJS, Mitten. Monoicus, statura F. bryoklis ; foliis patentibus oblongo-ellip- 

 ticis latiusculis aeutis, nervo palliclo percurrente, lamina vera ad medium producta, 

 omnibus laminis immarginatis tenuiter crenulatis, cellulis opacis; theca in pedun- 

 culo gracillimo ovali subtequali siccitate urceolata ; flore masculo in apieibus 

 ramorum. 



Hab. Interior of Africa [Mungo Park). 



Neariy allied to F. opacifolius, but the lamina vera is without the hyaline margin, and the inflorescence 



and capsule are different ; it is also allied to F. Hornschuchii, Mont., and agrees with it in inflorescence. 



but the structure of the leaves is not the same. 



Tab. VI. fig. 13. 1. Plant (natural size) ; 2. the same, 3. leaf (magnified). 



F. CURVIFOLITJS, Mitten. Dioicu.s ? humilis, gracilis ; foliis plurijugis patentibus falcato- 

 curvatis elliptico-lanceolatis, nervo pallidiore sed obscuro percurrente, lamina vera 

 supra mediimi producta, lamina dorsali in caulem decm'rente, omnibus laminis 

 immarginatis tenuissime crenulatis integerrimisve, cellulis niinutis obscuris diametro 

 circiter s-oto-tooo unciae mensura; theca in pedunculo gracili luteo? ovali incli- 

 nata, operculo subulato. 



Hub. On the earth. Niger {Vogel). 



Almost intermediate between the species which, without any margination to the apical lamina, have 

 their leaves entire or crenulate ; in the present the crenulation is indistinct, but the cells, although obscure, 

 are distinguishable, and, together with the form and flexure of the leaves and inclined capsule, distinguish 

 it from its allies. 

 Tab. VI. fig. 14. 1. Plant (natural size) ; 2. the same, 3. leaf (magnified). 



F. RiPENSis, Mitten. Csespitosus, caule elongato ; foliis patentibus siccitate parum mutatis 

 ligulato-lanceolatis aeutis, nervo percurrente, lamina vera ad medium producta apice 

 insequali, lamina dorsali basi contracta, omnibus laminis immarginatis tenuiter 

 crenulatis, cellulis distinctis diametro circiter 2-000 incise metientibus. 



Hab. On moist rocks. Niger [Barter). 



This appears to be the largest known species belonging to the group with immarginate crenulate 

 leaves, and is easily known by its distinct and pellucid areolation. 

 Tab. VI. fig. 15. 1. Plant (natural size) ; 2. portion of stem and leaves (magnified). 



F. GLADIOLUS, Mitten. Dioicus ? humillimus, parvulus; foliis circiter trijugis auguste 

 lanceolatis sensim angustatis aeutis, nervo intensius colorato percurrente, lamina 

 vera ad medium producta, omnibus laminis immarginatis integerrimis, cellulis elon- 

 gatis laxiusculis distinctis ; foliis perichoetialibus lamina vera apice insequali, uno 

 latero libero ; tlieca in pedunculo gracillimo ovali inclinata, operculo brevirostrato. 



Hab. Interior of Africa [Mungo Park). 



This minute slender species is remarkable foi- its narrow, loosely areolate leaves. The whole plants 

 are about three lines high. 

 Tab. VI. fig. 16. 1. Plant (natural size) ; 2. the same, 3. leaf (magnified). 



