470 THE FAMILIES. (iENERA AND SPECIES OF PTERIDOPHYTA. 



Var. b. glauca. Sim. — Leaf .^iacous; not unlike 1'. calomcla- 

 nos. Found "' on the top of nearly bare rock or amoni^' stones." 

 Houtboschberi;-, Ze., 6,000 ft., Schlcclitcr 4.431; Beestekraal, 

 Jenkins, in T.M.H. 773; Waterval Onder, Bn.. Jenkins, in 

 T.M.H. 764. 



Var. c. macrophylla. Kunze. — Leaf usually only once pinnate; 

 not uncommon in forest (Sim.). Forests, Waterval Under, 

 Bn., Rogers 95. 



7. P. leucomclas. Baker. — " Transvaal," Tod. Not since 

 ■collected: the identification appears to be uncertain. 



8. P. calomelanos. Link. — Among" stones or in crevices of 

 rocks, common, 2.400 to 5,600 ft., Magaliesberg", Pa., Zeyhcr. 

 Burke: Magaliesberg, at the Crocodile River. Pa.. Burtt-Davy 

 212; Waterval Boven, Bn., Burtt-Davy 1,436; Shiluvane, Ze.. 

 Junod 519; Marovuni. Ze., Junod 231 : Potgietersrust, Wg., 

 Miss J.eendertc 750; Pretoria. Pa., Miss Leendertz 26; Bok- 

 fontein, Jenkins, in T.^LH. 769; Matlabas River, P. Kra)itc. in 

 T.M.H. 763; Rosettenville, J.. A. Petersson. in T.M.H. 264. 



9. P. Burkeana. Baker. — Crevices of wet rocks, Magalies- 

 berg, Pa., Burke. Not since collected in the Transvaal, though 

 found in Natal and Rhodesia. 



11. N()TIIf)CHL/EXA, R.Br. 



Sori marginal, without indusium, at tirst oblong or sub- 

 globose, soon confluent into a continuous marginal line. — 

 Leaves ovate, 2 or^-i^innatihd. Closely related to Cheilanthes, 

 but differing in the absence of indusium, though in some species 

 the margin of the leaf is partly revolute over the sori. 

 Leaf oblong. 



Both surfaces of leaf woolly; crown set with reddish 



scales; stipe almost naked i. incequalis. 



Li^pper surface of leaf naked or nearly so ; crown and 



stipe paleaceous or woolly 3. Eekloniana. 



Leaf deltoid; both surfaces woolly; stipe hairy 



2. Bnehanani. 



1. N. incequalis. Kunze. — Dry rocks, not common. 

 Magaliesberg, Pa.. Zeylier. Burke: near Standerton, Sn., Reh- 

 mann. 6,739; Marovuni. Ze., Junod 2^H. i^i^^: Warml)erg, Zw., 

 Janse. 



2. N. Buehanani. Baker. — Damp rocks, under shade. Hout- 

 boschberg, Ze., Miss Eastivood: Mamotsuiri, Ze., Junod 225. 



3. ^V. Eekloniana. Kunze. — On or in the shade of dry stones 

 in open places, 3,000-6.800 ft. Magaliesberg, Pa., Burke: 

 Trichardsfontein, Btl., Rcluuann: Houtboschberg, 6,800 ft., 

 Sehlechter 4.704; Ivy Range, Moodies. Bn., Thorncroft 477; 

 Barberton. Bn., CaJ'pin 426; Shiluvane, Ze., Juitod 889 1,843. 



12. Cheilanthes, Swartz. 



Sori marginal as regards the segments of the leaf, commenc- 

 ing as distinct globose dots at the ends of the veins, but often 

 Ijecoming more or less confluent, more or less covered by the 

 reflex margin of the leaf, which forms a false indusium. 



