272 Transactions. 



4. G. depressa, Hook. f. 



Var. acaulis. 



5. C. stellata, Hook. f. 



New Zealand botanists will probably prefer to await an opinion 

 from other European authorities on the genus before adopting 

 or rejecting Schulz's views. From the point of view of geogra- 

 phical distribution, it is an important matter to be sure of one's 

 around in dealing with supposed cosmopolitan species like C. 

 kirsuta. If the southern plants referred to C. hirsuta by Hooker 

 are really separated from it by differences of specific value, the 

 sooner the fact is recognised the better. On the other hand, 

 an important fact of geographical distribution should not run 

 any risk of suppression through attaching undue weight to 

 minor differences of possibly not more than varietal rank. 



Lepidium. 



An important monograph of this genus, prepared by Dr. 

 A. Thellung, of Winterthur, has been published under the 

 auspices of the Botanical Museum of the University of Zurich. 

 The author divides the genus into five sections, distinguished 

 mainly by modifications of the fruit, whether winged or wingless, 

 and by the length and position of the style compared with the 

 wing. The New Zealand species all fall into his Section V, 

 Nasturthides, and are arranged as follows : — 



1. L. oleraceum, Forst. 



Var. a, frondosum, T. Kirk. 



Var. b, acutidentatum, T. Kirk. 



Var. g, serrulatum, n. var., Thellung : " Folia ob- 



ovata, a medio ad apicem regulariter subtiliter 



et acute serrata." 



2. L. incisum, Hook. f. {L. flexicaule, T. Kirk). 



3. L. Banksii, T. Kirk. 



Var. b T ovatum, T. Kirk. 

 \. L. obtusatum, T. Kirk. 

 5. L. sisymhr hides, Hook. f. 



Subspecies I. Solandri, Thellung. 

 Var. typicum, Thellung. 

 Var. ovatum, Thellung. 

 Subspecies II. Matau, Thellung {L. Matau, Petrie). 



Var. b, lobulatum, Thellung. 

 Subspecies III. Kawarau, Thellung (L. Kawarau, 

 Petrie). 

 Var. b, dubium, T. Kirk. 

 (I. L. Kirhii, Petrie. 

 7. L. tenuicaule, T. Kirk. 



Var. b, australe, T. Kirk. 



