144 PROFESSOR OLITER OX ANGOLAN LENTIBULABTE.^. 



to venture upon many observ^ations respecting those which occur 

 on the islands. I noticed, however, amongst others, the common 

 New Zealand blue-bottle and yellow flesh flies, and the European 

 or Australian house-fly ; mosquitoes and sandflies are abundant. 

 In the bush I saw a considerable number of spiders, including 

 one very large Mygale^ which also frequented buildings, making 

 its nest in the thatch. I found several beetles. Moths and 

 butterflies were rare, the few I met with being apparently iden- 

 tical with New Zealand species. 



Several introduced plants are spreading rapidly — for example, 

 the White Clover, the English Daisy, the Dock, the Mustard, the 

 English Burr (which growls with the utmost rankness in the busix 

 on Pitt's Island, often to the height of 3 feet and upw^ards), the 

 Polygonum found on the Canterbury Plains, the wild Strawberry, 

 and others. Indeed, from the luxuriance and rapidity with which 

 these plants grow, I have little doubt that, if not checked, they 

 would soon overcome and replace the indigenous herbaceous 

 vegetation. All kinds of introduced vegetables grow with great 

 vigour ; and since the importation of bees, European fruit-trees 

 and bushes have produced freely. 



In conclusion I would suggest that if any other person should 

 be tempted to visit the islands for botanizing purposes, the 

 months from December to April inclusive would be found to be 



the best season. 



Tour affectionate Son, 



Henbt Hammersley Tbavebs 



On the Lentibularieae collected in Angola by Dr. Welwit&ch, 

 A.L.S., with an Enumeration of the African Species. By Pro- 

 fessor Olit:^, Keeper of the Herbarium and Library, Kew- 



[Read December 15, 1864.] 



Thkough the courtesy of Dr. "Welwitsch, I have had the oppor- 

 tunity of examining his remarkably fine set of this singular little 

 Order, and of drawing up the following synopsis of all the species 

 collected by him, with descriptions of those which appear to be 

 new. I have added some notes and descriptions of other African 

 Utricularias in the Kew, Dublin, and Linnean Society's herbaria. 

 Altoerether ten new species of Utricularia and one of Genlisea are 



