27 



patent moderately distant (more crowded upwards) rarely ex- 

 ceeding an inch long, their rachises compressed subalate, 

 pinnules scarcely | of an inch long ovate-lanceolate pinna- 

 tifid with few erecto-patent obtuse or acute muticous entire 

 or subdentate segments, sori copious large for the size of the 

 plant 2-3 on each pinnule, involucres thin-membranaccous he- 

 mispherical vesiculose peltate ferruginous. (Tab.CCXXVII.) 



Hah. New Zealand, on elevated mountains : Northern Island. B'teffenhach ,- 

 Middle Island, Discovery Peaks, 5800 feet, Travers ; Rocks in Waira gorge, alt. 

 4400 feet, in extremely exposed cold situations, Sinclair. Between Lake Tenny- 

 son and the west coast, C. Mailinr/. — A new and very peculiar small species, with 

 soft hut stout stipites and rachises, which are very paleaceous ; the ramification 

 approaches that of A. mohrioides and A. Prescoltianum ; but the involucres are 

 unlike those of any other species, being singularly thin and membranaceous, 

 covering the sori with a large (in proportion to the size of the plant) hemisphe- 

 rical peltate bladdery lid. 



31. A. (Polystichum) anomaluin, Hook, and Arn.; caudex 

 erect?, stipites tufted 1-2 feet long stout at the base densely 

 paleaceous with very narrow long flexuose ciliated scales (the 

 lowest ones) and very large ciliated lanceolate thin broad- 

 lanceolate ones almost an inch long, the latter kind (but 

 smaller) continue upwards upon the stipes and main rachis 

 and are deciduous, fronds ample 1 h foot and more long subco- 

 riaceous ovato-lanceolate bi- rarely below tripinnate, primary 

 pinnae 6-8 inches long lanceolato-acuminate, piimules shortly 

 petiolate subfalcate obliquely ovate or ovato-lanceolate acute 

 lobato-pinnatifid coarsely serrated towards the apex rarely 

 obtuse or mucronate, superior truncated base auriculate, sori 

 biseriate terminal on the veinlets usually on the superior face !, 

 involucres when present orbicular peltate very frequently 

 wanting. — Polypodium anomalum, Hook, and Arn. MSS. 

 Hook, in Kew Gard. Misc. viii. />. 360. /. 11. Metten. Aspid. 

 p. 12. Polystichum anomalum, Thivaites. 



llab. Ceylon, Mrs. General Walker, Thwaites ; Horton Plains and Ilapootelle, 

 alt. r)-G000' feet, n. 3504. A state of this, as it appears to me, with the sori all 

 dorsal, is found by Mr. Thwaites, n. 328G : this is quite destitute of scales and 

 has some of the pinnules 1, inch long. The species is in cultivation in Kew, and 

 retains its usual peculiarity of bearing the sori on the upper or anterior side of 

 the frond. Mr. Thwaites has sent specimens with involucres, and the habit is very 

 nuich that of Aspid. aculeatum. 



*** 



Tri-quadripinnate or decompound. 



32. A. (Polystichum) aristatum, Sw. ; caudex long stout 

 creeping densely crinite with long subulate ferruginous scales, 



