Analyses of Books. 1 45 



generally pinnatifid at the base. 7. F. Hamata. 8. F. Coronata. 



9. F. Ciliata : d barren cells two, hardly touching in the middle j 

 prolonged into teeth or horns, but not forming a membranous calyx. 



10. F. echinata. W. F. trigonocarpa. 12. F. Sphaerocarpa. 

 13. F. pumila : e barren cells two contiguous ; crown erect. 14. 

 F. auricula : /barren cells four. 15. F, vesicaria : g barren cells 

 wanting, or reduced to a mere nerve ; panicle nearly fastigiate ; the 

 lower flowers solitary. 16. F. lasiocephala. 17. F. eriocarpa. 

 18. F. dentata. 19. F. puherula. 20. F. microcarpa. 21. F. 

 truncata. The paper is illustrated by drawings. 



De Merchantieis Auctore Thoma, &c. Taylor, M. D., F. L. S. 



The species of this order of plants, although limited in number, 

 are widely spread over the world, as we find from the Baltic sea to 

 the Mediterranean in Europe, over all America and even the moun- 

 tains of Nepaul. The author treats of such in this paper as have 

 come under his notice, under the genera Marchayitiaj Fegatella, 

 Fimbraria, Lunularia^ Hygropyla. Those who are fond of the 

 study of this beautiful order of plants, we cannot direct to a more dis- 

 tinct source for the solution of any difficulties which they may happen 

 to meet with, although it would have more congenial to the acquire- 

 ments of most botanists if the concluding remarks on each species 

 had been couched in English instead of Latin. We approve of the 

 use of the latter language for stating the specific characters, but to 

 carry the use of a dead language any futher is an abuse. 



On the Eriogoneae, a tribe of the order Polygonaceae. By 

 G. Bentham, Esq., F. L. S. 



The genus Eriogonum was first established by Michaux in his 

 Flora B or eali- Americana. The number of plants now known 

 which approach nearly to this genus amount to 40 species. In this 

 paper Mr. Bentham proposes to divide these into three genera. All 

 the species are equally distinguished by their involucrate inflorescence 

 and absence of stipulae, at least to the lower or cauline leaves. But 

 a considerable difference of habit has induced him, at the suggestion 

 of Mr. Brown, not only to separate generically 5 species with uniflo- 

 rous involucres ; but among these to isolate one {Mucronea) which 

 has a compressed and bidentate involucre formed of two leaves 

 instead of a triangular sexdentate one formed of six leaves as in the 

 iowv s^eQiQS ( Chorizanthe), The latter genus is further confirmed 

 and augmented by seven species collected in Chili by Macrae, 

 Cuming, Bridges, &c. 



Observations on the Genus Hosackia and the American Loti, 

 By George Bentham, Esq., F. L. S. 



The author modifying his views expressed in the Botanical Register 

 (vol. XV. tab. 1257) in reference to these two genera, is now induced 

 to confine the circumscription of Hosackia to the umbellate species, 



VOL. IV. L 



