438 DICOTYLEDONS AND CONIFERS 



Lactuca scariola, Linn. 



Reported by Cheeseman, on the authority of J. P. Kalaugher, 

 as occurring in Onehunga Railway Station yard in 1912. 



Lactuca muralis, E. Mey. Wall Lettuce 



Only recorded from Marlborough by Macmahon, and by Kirk, 



as abundantly naturalised in the Kaikoura Mountains. (Fl., Dec. to 



Jan.) 



Lactuca sativa. Garden Lettuce 



This species was no doubt introduced at an early date into the 

 county. The first reference I have come across is in D'Urville's 

 voyage. When he visited Otago Harbour in 1840, he met with it in 

 the native cultivations "in the forest," along with other vegetables. 



It has not become naturalised anywhere. 



Crepis virens, Linn. Hawk's-beard 



First recorded in Hooker's list in 1864. An extremely abundant 

 weed in fields, waste places and roadsides throughout New Zealand. 

 (FL, Nov. to June.) 



In Europe this species is visited by Bombus terrestris and Eristalis 

 tenax. 



Crepis fcetida, Linn. 



First recorded by Kirk, as Barkhausia fcetida, as occurring in the 

 Auckland district in 1869. In the Manual (1906) it is stated to occur 

 in fields on the Auckland Isthmus, but not commonly. (Fl., Nov. to 

 Feb.) 



Crepis taraxacifolia, Thuill. 



First recorded from Auckland district in 1869 by Kirk as Bark- 

 hausia taraxacifolia. Recorded from the same locality in the Manual 

 (1906). (Fl., Nov. to Feb.) 



Crepis setosa, Hall. f. 



Stated by Cheeseman in the Manual (1906) to occur, but not 

 commonly, on waste places on the Auckland Isthmus. (FL, Jan. to 

 Feb.) 



Sonchus arvensis, Linn. Corn Sowthistle 



First recorded by Hooker in 1864. In the Manual (1906) it is 

 stated that it occurs in "cultivated fields near Auckland, rare." 



Two species of sowthistle are perhaps indigenous to New Zealand ; 

 of these S. littoralis, Kirk, was collected by Banks and Solander. 

 S. oleraceus, Linn., is a doubtful native. Kirk says (1893): "It is 

 certain that seeds of two forms (S. asper and S. oleraceus) must have 

 been repeatedly introduced since that period" (1773) "and that 



