128 APPENDIX. 



Graham, Bentham has the following note * : — " To these plants [i. e. Hartweg's] I have 

 occasionally added notes on another most valuable set of above 400 beautifully dried 

 Mexican species gathered about the town of Mexico and in the mining districts of 

 Tlalpuxahua and Real del Monte, and presented to me some years since by G. J. Graham, 

 a gentleman whose name must be well known to horticulturists from the number of 

 handsome Mexican plants he was the means of introducing into this country, and whose 

 zeal in collecting specimens, and liberality in disposing of them, equally entitle him to 

 the gratitude of botanists." 



Karl Ehrenberg. — A collector and botanist who spent ten years in Mexico f in 

 the States of Oaxaca, Mexico, San Luis Potosi, &c, and paid special attention to 

 the Cactacese, of which he introduced large numbers into European gardens. He 

 contributed some interesting information on the local distribution of this order in the 

 publication cited, the substance of which is reproduced in our remarks on the general 

 distribution of the Cactacese. The exact dates of his sojourn in Mexico we have not 

 ascertained, but he accompanied Galeotti on his excursions in the mountains of Real 

 del Monte. 



The Voyage of E.M.S. 'Sulphur.' — This expedition, accomplished during the years 

 1836 to 1842, was mainly for the purpose of surveying the western coast of America, 

 the operations extending from Peru northward to Alaska, but they were chiefly confined 

 to the Californian and Mexican region. A few of the Pacific Islands and New Guinea 

 were also visited. It was commanded by Captain Sir Edward Belcher ; and the botany of 

 the voyage was edited by Richard Brinsley Hinds, Surgeon R.N., the botanical descrip- 

 tions being written by G. Bentham. Collections of dried plants were made at Panama, 

 the island of Taboga, the Gulf of Nicoya, Costa Rica, at Realejo in Nicaragua, in 

 the Gulf of Fonseca, Honduras, and in the neighbourhood of San Bias and Tepic in 

 the State of Jalisco, Mexico ; but as the collectors nowhere penetrated far inland 

 the novelties from these regions were comparatively few and of an uninteresting character. 

 Mr. Hinds and Dr. Sinclair, officers of the ship, and George Barclay, a gardener from 

 Kew, made the collections, and the plants are in the Kew Herbarium. 



About this period John Parkinson, F.R.S., was British Consul-General in Mexico, 

 and exerted himself much in the cause of botany, both in making dried collections and 

 in sending living plants to this country. His dried plants are preserved at Kew. 

 The sixty-sixth volume of the ' Botanical Magazine ' (1840) was dedicated to him by 

 Sir William J. Hooker, in recognition of his services in advancing botany and horti- 

 culture. In 1839 Emanuel Friedrichsthal " performed journeys through a great part 

 of Nicaragua and Costa Rica ; " J yet all the plants of his collecting in the Kew 



* Plantse Hartwegianae, Preface, p. iv. f Linnaea, xix. p. 337. 



J Hooker's London Journal of Botany, v. p. 46. 



