126 MISSOURI BOTANIGAL GARDEN. 
elsewhere. Lindheimer gave a number to each collection in 
the field, usually with more or less data in German as to 
habitat, locality, date, etc., his numbers following in order of 
collection. Engelmann then arranged the collections by orders 
and species after the Bentham and Hooker sequence, and 
gave independent numbers to the exsiccatae, following this 
sequence. However, a large number of Lindheimer’s col- 
lections were never made in quantity, hence were never 
numbered for the exsiccatae and have only his own collection 
label in the Engelmann herbarium, and this must be re- 
membered in quoting Lindheimer specimens, only the Engel- 
mann label being printed. Throughout the present paper 
both numbers have been given, so as to enable the two to be 
identified, if needful, Lindheimer’s collection number being 
preceded by “L.” 
The purpose of the present paper is not only to give a list 
of the species of this last Lindheimer collection of 1849-1851, 
preliminary to their distribution, but also to enumerate the 
species of the missing numbers of parts I and II of Plantae 
Lindheimerianae, as far as such can be found, and to give an 
index to the whole, as an aid to other’ botanists interested 
in the flora of Texas. There will be added a brief account 
of the pioneer-botanist-editor, Lindheimer himself, the im- 
portance and magnitude of whose work has scarcely been 
_appreciated, and also a general bibliography of Texas botany. 
Considerable of the work of classification and determina- 
tion of the collections treated in this paper was done by Prof. 
A. S. Hitchcock some 15 years ago, and many of the deter- 
minations of Fascicles III and IV are by Engelmann and 
Gray, while I am indebted to Professor Trelease for advice 
and assistance in the preparation and arrangement of the 
work. 
Much of the data concerning the life and work of Mr. Lind- 
heimer has been supplied by his son, Mr. M. E. Lindheimer, 
of Austin, Texas, and his daughters, Mrs. Sida Peipers, of St. 
Louis, and Mrs. Anna Simon, of New Braunfels, Texas, 
without whose assistance many facts would have escaped 
my knowledge. 
