400 SUBANTARCTIC ISLANDS OF NEW ZEALAND. [Systematic Botany. 



specimens, but a single example obtained by Mr. Tennant at Port Ross showed two 

 or three in excellent condition. They are developed singly at the tip of a short 

 peduncle springing from the axil of one of the radical leaves, and are so small as to be 

 only just visible to the unaided eye. There are 4 minute scale-like sepals, no petals, 

 and 4 small stamens^ the filaments of which are barely as long as the ovate-cordate 

 anthers. Schulz states that there is only one stamen, but in two flowers examined 

 by me both had four. There is a short conical 2-celled ovary, each cell containing 

 2-6 ovules, of which (according to Schulz) only one ripens. After fertilisation the 

 peduncle elongates and curves downwards, ultimately burying the ripening pod in 

 the soil. Similar cleistogamic flowers are known in the South American C. cheno- 

 podifolia, and have been described with considerable detail by Grisebach and other 

 authors. 



Mr. Hamilton, in his notes of a visit to Macquarie Island, records var. corymhosa 

 as a native of that island. I; have not seen his specimens, but I understand that they 

 were subsequently identified by Mr. Kirk as C. hirsuta, var. suhcarnosa, referred to 

 C. glacialis m. this memoir. For the Fuegian locality I am indebted to Wildemann's 

 " Results of the Voyage of the ' Belgica,' " p. 98. 



Cardamine depressa, Hook, f 



Cardamine depressa, Hook, f., Fl. Antarct., i, 6, t. 3 and 4b (1844). 



The Snares : Kirk. Auckland Islands: From sea-level to 1,500 ft.; Hooker, 

 Kirk ! Cockayne ! Aston ! Tennant ! Campbell Island : Cockayne. (New Zealand ; 

 in mountain districts from Nelson southwards.) 



Cardamine depressa, Hook, f., var. stellata. 



Cardamine stellata, Hook, f., Fl. Antarct., i, 7, t. 4a (1844) ; Schulz in 

 Engl. Jahr., xxxii, 560 (1903). C. depressa, var. stellata, Hook, f., 

 Handb. N.Z. FL, 12. 



Campbell Island : Usually on rocky debris ; Hooker, Kirk ! Cockayne ! Laing ! 

 (Endemic.) 



Schulz considers that both the forms of C. depressa are entitled to specific rank, 

 and he also excludes the New Zealand mountain forms associated with it by Hooker ; 

 but specimens which I have gathered in the mountains of Nelson and Canterbury 

 come so near to the type that I feel compelled to keep them together. Dr. Schulz 

 omits all mention of these closely allied New Zealand plants in his monograph. 



Lepidium oleraceum, Forst 



Lepidium oleraceum, Forst., Prod., n. 248 (1786) ; Hook, f., Fl. Nov. ZeL, 

 i, 15 (1853). 



The Snares : Rocky places on the cliffs ; Kirk, Aston ! Auckland Islands : 

 Exact locality not stated ; General Bolton, Kirk ! (ex Herb. Petrie), Tennant ! 

 (New Zealand ; rocky places near the sea, from the Three Kings Islands south 

 wards.) 



Mr. Aston's specimens from the Snares have long narrow Imear leaves, thus 

 presenting a somewhat different appearance to the ordinary state of the species. 



