THE FAMILIES. GENERA AND SPECIES OF PTERIDOPHYTA. 463 



I. WooDSiA, R.Br. 



Sori globular, situated on the back of a vein. Indusiuni 

 membranous, either at first cup-shaped (then usually breaking: 

 up into capillary segments), or sometimes — in an earlier stage 

 — completely covering the sorus. — Tufted plants. Stipes^ 

 usually articulate above the base. Leaves small, herbaceous,, 

 ovate-lanceolate, 2 or 3-pinnatifid, the veins always free. Only 

 cne species. 



1. \]\ Hiirgcssiana, (jerrard. — 1 loutboschberg. Ze., 6,500 ft.^ 

 Sclilcclifcr. 4,705; "Transvaal" teste Lady Barkly. 



2. AsPiDiuM, Sv^artz. 

 .Sori round, with a central stalk supporting the peltate in- 

 dnsium which covers the sporangia. Differs from Neph- 

 rodium. with which it was at one time united, by its peltate 

 indusium. Leaves i, 2 or 3 pinnate. 

 \'eins free (= Polystichum, Koth.). 



Leaf simply pinnate, coriaceous ; sori in regular 



lines or somewhat scattered i. MacLcaiL 



Leaf 2 or 3-pinnate or 4-pinnatifid : 

 Leaf 2-pinnate or casually 3-pinnatifid ; pinnse 

 lanceolate, not increasing in breadth at the 



base; scales brown 2. aculcatuui var. pimgcns. 



Leaf 4-pinnatifid; lower pinnae deltoid; teeth 



bristle-pointed 3. aristatuni. 



Veins anastomosing" (= Cyrtomium Presl.). 



Leaf simply pinnate; sori scattered 4. falcatum. 



1. A. MacLcaii, Baker. — In wet kloofs. Pilgrim's Rest, Ly. 



McLca 34. in Herb. Bolus 3,030; Macamac. Ly. Ayrcs 

 (teste Buchanan). 



2. A. aculeatuni, Sw., var. puiigens, Kaulf. — Barberton, Bn., 



3,000 ft. Tliorncroft, in T.M.H., 104. 



3. A. aristatum, Sw. — ]\Iacamac Goldfields, Ly. McLea, 7. 



4. A. falcatum, Sw. — Lomati A^allev, Bn. Tliorncroft m 



T.M. H., 105; Macamac. Ly. ' McLca, 6; Barberton.. 



Bn., Tliorncroft, 100. 

 .1. prolixnm, Willd., is reported from the neighbourhood of 



Shiluvane. Ze. (Jintod, 650), but we have not seen the 



specimen. 

 A. athamanticum, Kunze. = Nephrodium athamanticum 



Hook. 

 A. incc quale, Schlech. = Xephrodium iucequale Llook. 



3. Nkphrodu'm. Rich. 

 Sori roundish or reniform. Indusium cordate-reniform, at- 

 tached by its sinus. — Leaves herbaceous, the pinnae pinnatifid 

 or still more divided, not jointed at the base. Closely related 

 to Aspidium. 



Veins all free (= Lastrea Presl.). 

 Leaves 2-pinnatifid. 



Veins simple; texture of leaf thin; sori numerous 

 on the pinnules. Rhizome short, with sub-erect 



crown I. Bcrgianum. 



Veins forked 2. Thclyptcns. 



