68 Information respecting Botanical Travellers. 



from which Professor Lindley has found it necessary to distinguish 

 it. Dr. Schomburgh's letter to the Botanical Society of London re- 

 specting this plant, together with an accurate and coloured figure, 

 have also appeared in the 11th number of Sir William Jardine's 

 Magazine of Zoology and Botany. 



By the latest account that we have received from this courageous 

 and scientific traveller, dated Demerara, August 28th, 1837, we learn 

 that he was then about to undertake another expedition, and to pro- 

 ceed, without delay, to ascend the Essequibo to William the Fourth's 

 Cataract, which he had reached in 1835-6; thence to continue the 

 survey of that river to its sources, which are considered to be in the 

 supposed mountain chain near the equator. If time and circum- 

 stances permit, he will then prosecute his researches to the eastward, 

 return to the junction of Rupernuny in January 1 838, and select 

 his tropical winter- quarters (i.e. during the rainy season) at the 

 Brazilian Fort San Joaquim. He then trusts to be enabled, as soon 

 as the dry season sets in again (in August 1838), to start towards 

 the mountain chain where the Orinoco is supposed to have its sources, 

 and to return to Demerara in February or March 1839. In this 

 difficult enterprise we fervently wish him success. Botany has al- 

 ready benefited considerably by his researches, notwithstanding his 

 heavy losses and the difficulties he has had to encounter ; and he 

 has sent to his subscribers in England many valuable plants besides 

 the Victoria above alluded to, and amongst them specimens and draw- 

 ings of four species of that highly curious aquatic genus Lacis (Po- 

 dostemon, Mirb.), of which further notice will be taken in a future 

 number of our Annals. 



Mr. Mathews, the indefatigable Peruvian traveller, has lately des- 

 patched another collection of dried plants from the neighbourhood 

 of Moyobamba. The specimens are in beautiful preservation, rich 

 in Melastomacece and Composited ; but by no means so numerous in 

 species as we could have wished. Mr. Mathews has neglected to 

 number them, which will occasion some delay in the distribution to 

 the Subscribers. ■ 



Mr. Tweedie, by whose researches in extra- tropical South America 

 our gardens as well as our herbaria have been so much enriched, has 

 recently performed a journey of some little difficulty to the south- 

 ward of Buenos Ayres, beyond the Rio Saladillo, to a ridge of hills 

 called Serras de Tandil, a country, as far as we know, never before 

 visited by a botanist. The account with which he has favoured us 

 of this journey will be given in our next number. 



