590 
BIBLIOGRAPHY. 
Germain de St. Pierre. —Anomalies de la raeine bulbiforme du 
Corydalis solida, et production exceptionnelle analogue cbez un 
Dcmcus Carota. Ibid. p. 594. 
- De la production et de la delimitation des especes vegetales. 
Ibid. p. 691. 
Gernet, C. v.—Xylologische Studien. Mosc. Bull. 1861, Yol. 34, 
p. 423. With 1 plate. 1. On the Stem-structure of Thalictrum 
flavum. 2. On Balta-wood: Description of a specimen, thus 
named, from Patagonia. 
Gieswald, H.—Ueber den Hemmungsprozess in der Antherenbil- 
dung. Danzig. 4to. pp. 35. With 1 plate. ( Vide Bot. Z. 1862, 
p. 111). The results of the author’s investigation of imperfectly- 
developed stamens or structures intermediate between petals and 
stamens, refer chiefly to the differentiation of tissues in the 
anther, the development of pollen-cells, the resorption of the wall 
of the mother-cells, and of the septa of the anther-cells. 
Gibson, G. S.—The Plora of Essex; or a List of the Elowering 
Plants and Eerns found in the County of Essex, &c. 1862. With 
4 plates and map. Tables are given (1) of the distribution of 
Essex plants in the eight Botanical districts into which the 
County is divided ; (2) of the earliest and latest dates at which 
the rarer species have been observed; (3) of the comparative 
abundance of species in the County; (4) a comparison of the 
Essex Elora with those of Cambridgeshire, Hertfordshire, 
Suffolk and Kent, also (5) with the sub-provincial distribution of 
‘ Cybele Britannica (6) of species likely to be found in Essex. 
Short biographical notices are appended of botanists who have 
worked on the Essex Elora, including Bay and Eorster. (vide 
N. H. B. 1863, p. 41). 
Gillet. —Nouvelle Elore Eranpaise. Paris. 1 vol. 8vo. pp. 620. 
Glehn, P. v.—Elora der Umgebung Dorpat’s. Arch. Nat. Kurlands, 
&c. Bot. ii. p. 489. 
Goeppert, H. B.—Ueber das Verhalten einer \Mimosapudica wahrend 
des Eahrens. B. Zeit. 1862, p. 110. Beferring to the influence of 
continued irritation upon the sensibility of the plant. 
-- Gerausch beim Durchschneiden eines Cycadeen-zapfens, 
Bonpl. 1862, p. 59. Attention is directed to the report made by 
the rupture of the spathe of certain Palms. A similar phenomenon 
was observed in cutting a female cone of Zamia transversely. 
Gras, A. — Sur la Synonyme d’une espece de Ranunculus. Bull. 
Soc. Bot. ix. 324. R. Philonotis, Ehrh. is the species in question. 
Gray, A.—Enumeration of Plants collected in the Bocky Mountain 
Bange, 1861. Am. Journ. Sc. 1862, xxxiii. pp. 8, 404, xxxiv. p. 249. 
With Supplement by Engelmann and Gray. 
-Bevision of the genus Castilleia. Ibid. p. 335. 
-_ Beview of the genus Mertensia. Ibid. p. 339. 
-Fertilization of Orchids through the Agency of Insects. 
Ibid. p. 420. Notes upon some American species. In Platan- 
