Polypodiacese. 
435 
the upper series scarcely larger than the others. A. 
Braunii Spenn.—As the last; hitherto only in the valleys 
of Hasli, Engelberg and near Ponte Brolla in Tess. 6 
angulare Kit. 2632. 
695. Cystopteris. Bladder-fern. XXIV,'21. 
1. Frond solitary, tri angular in contour, almost as broad 
as long (resembling Phegopteris Dryopteris). — Rocky and 
mossy places in the Alp., subalp. and (southern) Jura. 7 
montana Bernh. 2633. 
— Fronds clustered, oblong or oblong-oval (very rarely trian¬ 
gular) in contour. Type of C. fragilis 2 
2. Most of the teeth of the pinnules not incised: the nerves 
mostly running into the teeth.—Walls and damp shady 
rocks; everywhere. 6 fragilis Bernh. 2634. 
— Most of the teeth of the pinnules incised; the nerves 
very gen. running into the incisions. C. regia Koch. 
Alp. and subalp ; Dole in the Jura. 7 
alpina Link. 2635. 
696. Qnoclea. Onoclea. XXIV, 12. 
1. Barren fronds resembling those of 262o, but not gland¬ 
ular, and, in addition, the lateral nerves of the lobules 
are simple (not forked). Fertile fronds much shorter, 
pinnatisect, with semi-cylindric segments. Struthiopteris 
germanica Willd.—Tess. (Yal Maggia, Generoso). 6 
Struthiopteris Hoffm. 2636. 
697. Woodsia. Woodsia. XXIV, 18. 
1. Fronds lanceolate, pinnatisect, with pinnatifid segments. 
Petiole and part just below the frond very scaly.— 
a. W. hyperborea. Segments of the second order 2—3 on 
each side, rather distant.—b. W. ilvensis R. Br. Fronds 
broader in contour, more thick with scales below; seg¬ 
ments of the second order 4—6, crowded.—Alp. and 
subalp., rare; G. T. W. 0. U. (a. Bevers in the Enga- 
dine, Simplon, Calanca, Faido &c.; b. St. Moritz in the 
Engadine). 7 . . . . hyperborea R, Br. 2637. 
