BOTANICAL INFORMATION. 415 
clearly and precisely, the general structure and anatomical 
composition of pollen, and pointing out its similarity of 
form in a certain number of natural families, he shows 
that it may be usefully employed in characterizing the 
families. 
Flora of Senegambia, published with MM. Achille 
Richard, and Perrottet. 
Memoir on the Pylostyles, a curious and novel genus in 
that most singular family, the Raffesiacee. 
Zephiritis Taitensis,a small work, which, with reference to the 
vegetation of the Society Islands, and especially Tahiti, con- 
tains some interesting information on botanical Geography. 
Independently of these and various other scientific labours 
a vast number of articles scattered in different works attest 
the aid which Guillemin lent to botany. For five years he was 
chief editor of the botanical portion of Ferussac’s Bulletin 
Universel, and Professor of Botany, for three years, in the 
Horticultural Institution, at Fremont, whose Annals he en- 
riched with a treatise on Botany and Vegetable Physiology. 
He had originated, in 1833, the Archives of Botany, a 
well-executed compilation, long supported by the gene- 
rous aid of M. Delessert, and afterwards joined to the 
2nd Series of the Annals of the Natural Sciences, which 
Guillemin edited, jointly with M. Adolphe Brongniart. 
Guillemin laid down his pen to resume it no more, after 
having given in these Annals, the character of Jaubertia, a 
new genus of plants; dedicated, at the desire of M. Delessert, 
to an ex-minister and member of the Chamber of Deputies, 
the Count Jaubert, whose important duties could not so 
engross his attention as to prevent his studying Botany, and 
finding in this peaceful employment an agreeable relaxation 
from the harass of polities. 
It had been easy for an individual, endowed with such 
facility of composition and compilation as Guillemin, to have 
left many more works; but his versatile turn of mind unfitted 
him for any long-sustained labour. The protracted application 
Which would have been requisite was peculiarly fatiguing to 
VOL. I. 21 
