31 



Further Notes on the Botany of the 

 WiLLoCHRA Valley. 



By Chas. F. Johncock. 



[Read May 6, 1902.] 



In the Handbook of the Flora of Extra-tropical South Aus- 

 tralia, b}" the late Professor Tate, ed. T890, p. 294, in defining 

 the divisions of the Eremian Kegion, he says of District " S", " it 

 -overlaps ' M' and ' N.'" 



The head of the Willochra Valley lies within District " N," 

 and is covered by the overlap. These notes, which are the out- 

 come of six years' careful work, largely refer to this overlap, and 

 it is in the hope that they may prove useful in addition to the 

 annotated schedule in the " Flora ;" that they may do something 

 towards completing the botanical knowledge of this interesting 

 district ; and that they may perhaps lighten the labors of other 

 amateurs, I submit them to the notice of this Society. 



Some of the notes refer to the purely overlapping species ; 

 some again refer to plants I believe hitherto unrecorded for this 

 district, while others refer to plants which, though now fairly 

 plentiful, have most probably been introduced through pastoral 

 and agricultural operations. 



In every case my observations have been carefully and 

 thoroughly made, and, wherever opportunity arose, as carefully 

 repeated and verified. In cases where I had any doubt I always 

 submitted my identifications to Professor Tate for verification. 

 I can therefore confidently affirm the correctness of the details 

 given below. 



1. Order Crueiferae. 

 I. Barbarea vulgaris. 1/10/97, &c. 



Only recorded for Adelaide district. Very common near 

 Willowie township, &c. Usually stunted, but in favorable 

 situations very tall and robust. Never eaten by stock. Evi- 

 dently introduced in seed wheat, tfec. 



II. Sisymbrium cardaminoides. 23/9/99, &c. 



Recorded for Cooper district ; fairly common in gullies on 

 west of Coomooroo Hill, but not out on the plains. 



