South African Ferns and their Distribution. 289 



Rhodesia : — Umtali (J. F. Darling 20). Victoria Falls 

 (Richards ; Holland). Matabeleland (Oates). 



131. Nephrolepis exaltata, Schott. 



The difference between this and N. cor dif alia are mentioned 

 under that species, but I fail to distinguish the two as 

 species either in the few wild specimens or in cultivation 

 in Natal. Several cultural forms are in cultivation, and 

 it seems not improbable that the specimen in Natal 

 Government Herbarium, No. 7581, from Lower Um- 

 zimkulu, collected by Dr. Dimock Brown in 1897, 

 was from an escape, as no one else has found it in 

 Natal. Baker, however, includes both N. cordifolia 

 and N. exaltata among the plants collected by Oates 

 in Matabeleland. 



132. Nephrolepis biserrata, Schott. 



Natal (F. of S. A.). 



133. Olcandra articitlata, Cav. 



Kaffraria :— Port St. John's, 1896, 100 feet (H. G. Flanagan 



2471). 

 Natal (F. of S. A.). 

 Transvaal : — Magalisberg (Zeyher ; Burke 530). 



134. Polypodium proliferum, Presl. 



Natal (F. of S. A.). 



Ehodesia: — Hunyani River, 1894 (J. F. Darling). Banks of 

 Mazoe (Holland). Umtali (Mrs. Bennett), with a frond 

 4 feet long, 6 inches wide below, but the upper half with 

 rather distant short alternate pinnules 1 inch long, 

 \ inch wide. Nine axils have buds, some developed 

 into fronds 1 foot long. Mrs. Bennett writes that it is a 

 lovely drooping fern, and most effective in hanging 

 baskets. 



135. Poly podium unitum, Hk. 



Natal (F. of S. A.). 



Rhodesia : — Umtali (Mrs. Bennett). 



136. Polypodium parvulum, Bory. 



Fronds subcoriaceous, ultimately naked, pinnate, 4-6 inches 

 long, i inch wide ; pinnae 1 line wide. Sori 2-6 to a 

 pinna, medial. 



Zambesiland (Synopsis Filicum). 



137. Polypodium vulgare, Linn. 



West, East, Kaffraria, Natal (F. of S. A.). 



138. Polypodium cnsifonne, Thun. 



West, East, Natal (F. of S. A.). 



