8 
FEENS OF NATAL. 
Dry and rocky parts of bnsli ; Great Noodsberg ; Town Hill ; Nottingham ; 
and Cathkin. 
29. P. v iridis, Forsk. ; st. 6-12 in. 1., wiry, erect, dark cliesnut-brown, 
polished, naked ; fr. 6-24 in. 1., 6-12 in. b., oblong, bi- or tri-pinnate ; pinnae 
erecto-patent, varying from simply pinnate to copiously bipinnate, ult. divisions 
ovate or lanceolate, not toothed, 1-2 in. 1., in. b. or more, sessile or very 
nearly so, texture subcoriaceous, veins fine but plainly visible, once or twice 
forked ; rackis and both surfaces naked ; sori in a narrow continuous marginal 
line ; invol. rather narrow, membranaceous, nearly or quite hidden when the 
fruit is mature. (Syn. P. hastata, Link.) Hab. Palmiet, near Clare ; 
Umbilo ; Krautzkloof ; Durban Flats ; Maritzburg ; common. 
30. P. calomelanos, Link ; st. tufted, strong, erect, 4-6 in. 1., naked, dark 
brown, polished, slightly fibrillose towards the base ; fr. 4-8 in. 1., 3-6 in. b., 
subdeltoid bi- or tri-pinnate ; low T er pinna? rigid, spreading or erecto-patent, 
linear-oblong, and simply pinnate or deltoid and bipinnate ; ult. segm. on rigid 
black stalks, the lateral ones -V to $ in. each way, varying in shape from cordate- 
oblong-obtuse to hastate-triangular, about as broad as long, the two sides at the 
base often unequal ; rack is shining, naked, blackish ; texture coriaceous, both 
surfaces naked, glaucous-green, veins not perceptible ; sori in a broad marginal 
line soon hiding the narrow rftembranous involucre. Hab. : — Among dry rocks ; 
common, from Field’s Hill to Drakensberg. 
31. P. BurJceana, Baker ; st. tufted 4-6 in. 1., naked, flexuose, polished, nearly 
black : fr. 3-4 in. 1., 2 in. br., wdtli several pail's of simple, entire, short stalked 
upper pinna), which are 1-1) in. 1., 1,- in. or more br., quite entire, rounded at the 
base, blunt at the point ; lower pinna) slightly compound ; rackis and both 
surfaces naked, costa) black and polished in the lower part ; texture, coriaceous ; 
veins copiously anastomosing ; sori quite continuous round the margin of the 
pinnl., broad and ultimately hiding the reflexed involucre. Hab. : — Magalisberg, 
discovered by Mr. J3urkc ; and on the Noodsberg. 
Gen. 31. — Pteeis, Linn. (Brake.) 
Sori marginal, linear, continuous, occupying a slender filiform receptacle in the 
axis of the involucre. Invol. the same shape as the sorus, usually membra- 
nous, at first quite covering it, at length more or less spreading. 
32. P. long't, folia, L. ; st. 6-12 in. 1., stout, erect, pale, more or less clothed 
below with pale-brown linear scales ; fr. 1-2 ft. long., 4-9 in br., oblong-lanceolate, 
attenuated below ; pinna? sessile, often 20 to 30 on each side, 3-6 in 1., J-i in. br., 
linear, entire, truncate, or cordate, or sometimes slightly auricled at the base ; text ure 
subcoriaceous ; rackis naked or slightly scaly below, or throughout, both surfaces 
naked ; veins close and fine, usually once branched ; invol. membranous, yellowish 
brown. Hab. : — Hot spring, Inldimbiti : and beside running streams ; Field’s 
Hill ; Verulam ; Weenen Thorns ; Cathkin ; but not common. 
33. P. crelica, L. ; st. 6-12 in. 1., erect, wiry, naked, straw colored or pale 
