Systematic Botany.} SUBANTARCTIC ISLANDS OF NEW ZEALAND. 399 



with, a rosette of densely crowded radical leaves and with a short and stout flowering- 

 stem. Radical leaves 1-6 cm. long ; petiole half the length or nearly so, broadly 

 sheathing at the base ; leaflets 1-5 pairs, with a terminal one ; terminal leaflet much 

 the largest, 5-15 mm. diam., entire or angularly sinuate-repand or -lobed ; lateral 

 similar but usually smaller, sessile or shortly petiolulate. Cauline leaves few, smaller 

 and on shorter petioles ; leaflets fewer and smaller. Racemes short and dense, 

 corymbose, probably elongating in fruit. Flowers usually numerous, rather large, 

 3-5 mm. diam., white, pink, or purple. Sepals sometimes purplish at the tips. 

 Stigma broad, almost sessile. Ripe fruit not seen ; in an immature state crowded, 

 very short and broad ; style almost wanting. 



Auckland and Campbell Islands : Not uncommon in stony debris or in moist 

 grassy places ; Hooker, Kirk, Cockayne ! Aston ! Tennant ! Laing ! Macquarie 

 Island : Swampy places near the coast ; A. Hamilton. (Southern Chili ; Fuegia ; 

 Falkland Islands.) 



But few specimens of this plant were available during the preparation of my 

 Manual, and most of them were in poor condition. I therefore followed Sir J. D. 

 Hooker in placing it under C. hirsuta. A much more complete series, mainly col- 

 lected by Mr. Aston, has now fully convinced me of its distinctness. It differs from 

 C. hirsuta in the stout and fleshy habit, perennial rhizome, large often coloured 

 flowers, short and broad often crowded pods, and almost sessile stigma. It is much 

 more closely allied to the South American C. glacialis, to which it was united by 

 Schulz in his recent monograph of the genus, and it appears best to follow this 

 arrangement until a leisurely comparison of specimens can be made. 



Cardamine hirsuta, Linn., var. corymbosa, Hook. f. 



Cardamine corymbosa. Hook, f., Ic. Plant., t. 686 ; Fl. Antarct., i, 6 (1844) ; 

 Schulz in Engl. Jahr., xxxii, 561 (1903). C. hirsuta, Linn., Sp. Plant., 

 655, var. corymbosa. Hook, f., Handb. N.Z. Fl., 12 (1864). 



Auckland Islands : Port Ross ; Tennant ! locality not stated ; Cockayne. Camp- 

 bell Island : Turfy ground near the sea, common ; Hooker, Laing ! (New Zealand, 

 from the Tararua Range northwards ; Orange Harbour, Fuegia.) 



This was first treated by Hooker as a distinct species, but at a later period he 

 reduced it to the position of a variety of the northern C. hirsuta, including with it 

 some mountain forms from New Zealand. Schulz, in his monograph of the genus, 

 restored it to specific rank, limiting it to the original Campbell Island plant. For 

 the present I have followed Hooker's arrangement, although I consider it probable 

 that most, if not all, of the southern forms previously referred to C. hirsuta will 

 ultimately be separated from that plant. 



Schulz describes the flowers of var. corymbosa as being apetalous. But this is 

 clearly erroneous, for not only are the petals shown in the plate given in the " Icones 

 Plantarum," and are described in the original diagnosis, but they are also present in 

 all the flowering specimens I have seen. 



In addition to the ordinary inflorescence, var. corymbosa produces very curious 

 cleistogamic flowers. These were overlooked until quite recently, when they were 

 detected by Dr. Schulz during an examination of some of Hooker's specimens, col- 

 lected nearly seventy years ago. I failed to find any traces of them in Mr. Laing's 



