426 



930. ALLOSORUS. 



Tribe III. PTERIBEM 



930. ALLOSORUS. 



1 . crispus. Frond bi-tripinnate. Pinnae 

 of barren Frond cuneato-oblong ; of fertile ob- 

 long, p. 7- Stony mountains. Wales, n. Eng. 

 Sc. Alps. Pr. G. 



931. CHEILANTHES. 



1. odorus. Frond smootli, bipinnate. Pin- 

 nules pinnatipartite. Segm. rounded. Stipe 

 chaffy, p. 4, 5. Warm rocks. Vesuv. Cors. 

 Prov. e. Pyr. Sic. 



932. NOTHOL.*NA. 



1. Marantse. Frond oblong, bipinnate. 

 Pinnules opposite, united, scaly beneath, smooth 

 above, p. 6-9. Warm rocks. Thueys and 

 Tournon in Ardeche. s. Tyr. 



2. lanuginosa. Frond oblongo - lanceo- 

 late, bipinnate, woolly on both sides. Pinnules 

 opposite, united, very obtuse ; upper confluent. 

 p. 11-8. Warm rocks. Cat. Pal. 



933. STRUTHIOPTERIS. 



1. germanica. Barren Fronds broadly 

 oblong, acuminate and attenuate, pinnate, pin- 

 natipartite. Segm. equal, obtuse, entire. Fer- 

 tile Frond lanceolate, pinnate. Pinnte linear, 

 subterete, entire, p. 7, 8. Moist valleys. G. 

 Switzerland, occ. 



934. PTERIS. 



1. aquilina. Fronds tripartite. Branches 

 bipinnate. Pinnules lineaii-lanceolate, the lower 

 pinnatifid. Segm. obtuse, p. 8, 9. Woods 

 and heaths. 



2. cretica. Frond pinnate. PinnEe oppo- 

 site, lanceolate ; the lowest tripartite, p. 6. 

 Rocks. Nice. Massa. Cors. Nap. 



3. longifolia. Frond pinnate. Pinnae 

 linear, somewhat auriculato-cordate, serrulate. 

 Stipe and Rachis chaffy, p. 6, 7- Warm 

 moist rocks. Ischia in the hot valours. Sic. 

 near Taormina, Syracuse, &c. 



935. ADIANTUM. 



1. Capillus-Veneris. Frond bipin- 

 nate. Pinnse alternate, thin, fan-like. Sterile 

 Lobes serrate, p. 6-9. Warm moist, s. and 

 w. Europe. 



Tribe IV. HYMENOPHYLLEM 

 986. TRICHOMANES. 



1. radicans. Frond smooth, 3 or 4 times 

 pinnatifid. Segm. linear. Involucrum soli- 

 tary, in the axils of the upper segments. Seta 

 at first included, afterwai'ds very prominent. 

 p. 9, 10. Waterfalls. KiUarney. Wicklow ? 

 Very rare. 



937. HYMENOPHYLLUM. 



1. tunbridgense. Fi-onds pinnate. Pin- 

 nse porrect. Segm. linear, spinoso-serrate. 

 Involucrum compressed, spinuloso-serrate. Ra- 

 chis with a broad wing. p. 7. Shady rocks. 

 Eng. Trunks of trees. Cherbourg. 



2. '^^ilsoni. Frond pinnate. Pinnse 

 somewhat recurved. Segm. linear, spinoso- 

 serrate. Involucrum inflated, entire. Border 

 of Rachis narrow, p. 7- Shady rocks. Sc. 

 n. England. 



Tribe V. OSMUNBEM. 



938. OSMUNDA. 



1. regalis. Frond bipinnate. Pinnules 

 somewhat auricled. Fr. in a bipinnate pani- 

 cle, p. 7-9. 



Tribe VI. OFHIOGLOSSEM 

 939. BOTRYCHIUM. 



1. Ijunaria. Ban-en Frond oblong, pinna- 

 tipartite, solitary. Pinnules flabeUato-semi- 

 lunar, incise, p. 6, 7- Dry pastures, occ. 

 There are rarely 2 barren fronds, and some- 

 times the pinnules are deeply divided. 



2. matricarifolium. Barren Frond ob- 

 long, pinnatipartite, solitary. Piunse ovato- 

 oblong, pinnatifido-lobate. Lobes slightly cre- 

 nate. p. 5, 6. Dry pastures. G. Vosges. 

 rare. — Koch. 



3. rutifolium. " Barren Fronds usually 2 ; 

 the lower sheathing base of fertile frond. Blade 

 broadly triangular, ternate. Div. pinnate. 

 p. 6, 7. Mountain woods, s. e. G. Vosges." 

 — Koch. 



940. OPHIOGLOSSUM. 



1. vulgatum. Frond ovate, obtuse. Spike 

 club-shaped, p. 5, 6. Clayey pastures. 



2. lusitanicum. Barren Frond lanceo- 

 late, on a cuneate base. p. 1, 2. I)ry bar- 

 ren. Istr. Rome. 



