PLANTS FROM THE BOLIVIAN ANDES, 79 
journeys he crossed the ridge of the Cordilleras no less than five 
times. In November 1848 he embarked at Lima and returned 
to France with the most valuable contribution to the materials 
for the Flora of the High Andes which had ever been brouzht 
together. In 1851 Weddell set out again at the head of a 
commercial expedition whose object was to investigate the gold- 
producing possibilities of the soil of the Tipuani valley. The 
expedition lasted only afew months, but its leader found time to 
collect plants on Mount Sorata besides making valuable notes 
concerning the distribution of the species and taking a series of 
barometric observations *. Meanwhile another botanist, a friend 
of Weddell, commenced a very valuable collection of plants on 
the Bolivian Andes in the neighbourhood of Sorata. This was 
Gilbert Mandon, of French peasant parentage, who went to 
Bolivia in an industrial capacity in 1848. For six years he 
studied the flora of this region of the Andes and sent his ex- 
tensive collections to Weddell, who was then engaged in writing 
the Chloris Andina +, which was commenced in 1852. The 
original idea of this work was to include the names, descriptions, 
and distribution, not of Weddell’s plants only but also 
of the alpine species collected by Humboldt in Columbia, 
Ecuador, and Northern Peru; by Haencke, Meyen, D’Orbigny, 
Pentland and C. Gay in Bolivia; and by Gay in Chili?. Of this 
work, so magnificently conceived, only two volumes were pub- 
lished. The first is devoted entirely to the Composit, members 
of which constitute a large proportion of the high-level floras of 
the world. The second, in which forty-one other natural orders 
are dealt with, was published in 1857. At this point other 
interests, family difficulties and ill-health supervened, and the 
work progressed no farther. 
The latest collection of plants from the Bolivian Andes—that 
obtained by Sir Martin Conway in his expedition in 1898-9— 
is the subject of the present paper. Conway's principai work 
was done upon the Peaks of Sorata (21,500 ft.) and Ilimani 
(21,200 ft.). The collection is a small one, numbering only forty- 
* H. A. Weddell: Notice Biographique par M. Eug. Fournier. (Comptes 
Rendus du Congrés Intern. de Botanique et d’Horticulture), Paris, 1880, p. 19. 
+ Chloris Andina: Essai d’une Flore de la Région alpine des Cordilléres de 
l’Amérique du Sud, par H. A. Weddell, 2 vols, Paris, 180, 1857. 
} Weddell: Chloris Andina, Preface. a2 
