66 



polyodon, G. Forst. Prodr. 428 (1786) ; J. Hook. Flor. Nov. Zeel. ii. 34; 

 A. cvdtratrum, Gaudich. in Freycen. Voy. Bot. 317 ; A. Forsterianum, 

 Colenso in Tasman. Phil. Journ. accord, to Jos. Hook. Flor. Not. Zeel. ii. 

 34; Trichomanea adiantoides, Linn. Spec. Plant. 1561; Flor. Zeylanic. 

 385 ; Burmann, Flor. Indie. 236 ; Tarachia polyodon, Presl, Epimel. 76. 



Chatham-Island, in woods on trees and in rocky crevices. 



ASPLENIUM MAEINUM. 



Linne, Spec. Plant. 1540, 



Varietas ohtumta. 



A. obtusatum, Forst. Prodrom. 430 ; Schknhr, Farmtr. t. 68 ; Labill. Nov. 

 HoU. Plant. Specim. ii. 93, t. 242, f. 2 ; J. Hook. Fl. Nov. Zeel. ii. 33 ; 

 Hombr. & Jaequem. Voy. an P61e Sud, Bot. Crypt. 1. 1 ; Hook. Exotic Ferns, 

 t. xlvi. ; J. Hook. Flor. Taam. ii. 145 ; Hook. Spec. Filic, iii. 96 ; A. obli- 

 quum, Forst. Prodr. 429 ; Labill. 1. c. t. 242, fig. 1 ; Schkiihr, Farrnkr. t. 

 71 ; A. difEbrme, E. Br. Prodr. 160; Endl. Prodrom. Flor. Insul. Norfolk-. 

 9 ; A. oblongifolium, Colenso in Tasm. PhU. Journ. sec. J. Hook. 1. c. ; A. 

 apicidentatum, Hombr. & Jaequem. 1. c. 



On rocky places of Chatham-Island almost everywhere. Not 

 rare in New Zealand and Tasmania, but very scarce in Continental 

 Australia. This variety is distinguished by more or less coriaceous, 

 simply pinnate not very elongated fronds, by often blunt finely or 

 grossly serrate -crenate or towards the base pinnatifid or pinnatisected 

 pinnae and by rather long sori. 



Our collections contain of this variety specimina only 2-3" high 

 with ample fructification ; further forms, which plainly connect this 

 plant with A. lucidum and with A. flaccidum. 



Varietas hulbifera. 

 A. bulbifeiTim, Forst. Prodr. 433 ; Sclikubr, Farrnkr. 74, t. 79 ; Hook. Icon, 

 t. 423 ; Hombr. & Jaequem. 1. c. t. 3, fig. 1 ; J. Hook. Flor. Nov. Zeel. ii. 

 34 ; Fl. Tasm. ii. 146 ; Hook. Spec. Fil. iii. 196 ; A. laxum, E. Br. Prodr. 

 151 ; A. viridans, LabUl. Sert. Austro-Caled. i. 2, t. ii. ; A. triste, Eaoul, 

 Choix, p. 10. 



Common in woods of the Chatham-Islands on the border of 

 water-courses. Frequent in New Zealand, Tasmania and in the fern- 

 tree gxdlies of South-East Australia. 



This variety is characterized by large more or less membranous 

 bipinnate fronds, acuminate pinnae, pinnatisected or pinnatifid lower 

 pinnules and short sori. 



Some of the viviparous specimina of our collections produce from 

 near the apex of the pinnae young plants fully. 2-3" long. 



