138 Transactions. — Botany. 



identification is evidently a clerical mistake, as Dr. Brotherus 

 has not published it. B. pomifonnis has no erect sheathing- 

 base to the leaves, while in the New Zealand moss the bases 

 of the leaves are erect and sheathing. 



I have seen no specimens of B. affinis, which is a Tas- 

 manian moss, originallv described and figured in the " Musci 

 Exoticae " by W. J. Hooker. The capsule is there figured 

 and described as being spherical, and the leaves with their 

 margins strongly recurved, while the capsule of B. affinis 

 of the Handbook is described as being "ovoid." This is 

 evidently a mistake, some other moss having the margins of 

 the leaves recurved having been mistaken for the Tasmanian 

 one. In the species treated in this paper there are only 

 two which have the margins of their leaves recurved ; one 

 of them slightly, the other strongly. The latter is the 

 one which is commonly taken by New Zealand botanists 

 for B. affinis. It is described in this paper as B. revisa. 



I have been unable to identify any of the following 

 species : B. crassincrvia, Mitt., B. affinis, B. consimilis. 



There are two characters in the leaves of the plants in 

 this genus which are useful as a means of classification, 

 forming two very distinct sections — First, leaves having erect 

 sheathing-bases ; second, leaves without sheathing-bases. I 

 have adopted this arrangement in the key. 



Key to the Species mentioned and described in this Paper. 

 Section A : Leaves more or less erect, and sheathing at the base. 



1. Bartramia lyatens, Btid. 



2. „ gibsonii, sp. nov. 



3. „ brevifolia, sp. nov. 



4. „ robusta, Hook. f. and 



Wils. 



5. „ hallerianioides, sp. 



nov. 

 5a. „ halleriana. 



6. „ fapillata. Hook. f. 



and Wils. 



Section B : Leaves without sheathing-bases. 



14. Bartramia hapnka, sp. nov. 



15. „ e7-tvinii, sp. nov. 



16. „ ovalithcca, sp. nov. 



17. „ tenuis, Taylor. 



18. „ joycei, sp. nov. 



19. „ turnerii, sp. nov. 



20. „ australis, Mitt. 



21. Bartramia pyriforma, sp. nov. 



22. „ rcmotifolia, Hook. f. 



and Wils. 



23. „ buchanani, sp. nov. 



24. „ pciidula, Hook. 



25. „ clongata, Mitt. 



Section A. 



Leaves more or less erect, and sheathing at the base. 

 1. Bartramia patens, Bridel. 



Species dioecious, growing in dense tufts 1 in. high, 

 yellowish-green above, dark-brown below, subdichotomously 



