Chebseman. — Contributions to Knowledge of Flora of A .Z. 91 



Naturalized Plants. 

 Aster subulatus Michx. 



This plant was first noticed in the vicinity of Auckland about twelve 

 years ago, and soon became plentiful, especially in moist places on harbour 

 reclamations, by roadsides and ditches, &c. It is a native of the United 

 States, where it is principally found in brackish-water marshes, ranging 

 from New Hampshire to Florida. 



Erigeron annuus Linn. 



Has appeared in some c{uantity in freshly sown grass at Otukai, 

 Mongonui, January, 1917 ; H. Carse ! So far as I am aware, this is 

 the first record of the occurrence of this plant in New Zealand. Native 

 of North America, where it has a wide range ; and it has also become 

 naturalized in Europe. 



Chlora perfoliata Linn. 



Manuka scrub at Parengarenga, North Cape district ; W . R. B. Oliver ! 

 Now recorded for the first time in New Zealand. It is a native of western 

 and central Europe, extending to north Africa and western Asia. 



Emex australis Stein. 



Near Parkhurst, Kaipara ; H. P. McLeod / This species appears to be 

 of uncertain occurrence in New Zealand, and never lingers long in any one 

 locality. It has a wide distribution in South and Western Australia and 

 South Africa. 



Tradescantia fluminensis Veil. 



A garden escape in many localities in the vicinity of Auckland, where 

 it has received the local name of " wandering-jew." Has become specially 

 abundant on portions of the Mount Eden lava-fields ; T. F. C. Mongonui 

 County — has become plentiful on river-banks near Awanui and Kaitaia, 

 and also covers considerable areas in flat swampy forest ; H. Carse ! Mr. 

 B. C. Aston also informs me that it is spreading fast in the vicinity of 

 Wellington. Native of South America, from the south of Brazil to Uruguay 

 and Monte Video. 



Elodea canadensis Michx. 



Clear running streams near Featherston, not common ; K. W. Allison! 

 Considering how rapidly this plant increased when first introduced into 

 Britain, it is somewhat remarkable that its spread in New Zealand has been 

 so slow since its first introduction in 1870. 



Panicum Lindheimeri Nash. 



Vicinity of Kaitaia, Mongonui County ; H. B. Matthews ! Originally 

 found on the summit of a hill by Kerikeri Pa, near Kaitaia ; but it has 

 since been observed in several localities in the district. I am indebted to 

 Dr. Stapf, of the Kew Herbarium, for the identification. Native of North 

 America, where it is said to be a common and widely distributed species, 

 found in dry woods and open grounds from Maine to northern Florida, and 

 westwards to southern California. 



