92 BIBLIOGBAPHY. 



repem, nor as a maritime form of the latter. A synopsis is given of 

 the various forms of the species, which are grouped under two series 

 or races ; together with descriptions and synonyms. 



Ascheeson, P. — Nachtrag zur Flora von Labrador ("Flora," 1860, 

 369-70). In a collection of 152 species gathered by Lundberg, 

 near E"ain, in Labrador, Dr. Ascherson finds about 36 species of 

 flowering plants and ferns which are not in the lists of Schlechten- 

 dal ("Linnsea," 1836, p. 76), or Martens (Miin. Denk. Begensb. 

 Bd. iv. i. 1). 



Babington, Chaeles C. — Flora of Cambridgeshire, or Catalogue of Plants 

 found in the county of Cambridge, with references to former cata- 

 logues, and the localities of the rarer species. — London, 1860, 8vo., 

 327 pages. A chapter on the topography of the county, with map, 

 and a tabular summary of the distribution of the species, are pre- 

 fixed to the catalogue. An appendix contains observations upon 

 several critical species and genera (Thalictrum saxatile, Papaver 

 duhium, Viola canina, Arenaria serpyllifolia, Rulus, Serrafalcus, 

 and Triticum), a list of species characteristic of the vegetation of 

 the Fens, and another of species believed to be lost to the Cam- 

 bridge Flora. A short account is also given of the range of Cam- 

 bridge species in Britain beyond the limits of the county. 



Baee, K. E. von - . — Erganzende ISTachrichten iiber Dattelpamien am 

 Kaspischen Meere und in Persien. — Bull. Ac. Imp. St. Petersburgh, 

 torn i., p. 35-7. 



Andeeson, Thomas. — On Sphaeroconia, a new genus of Caryophyllese, 



from Aden in Arabia Felix " Journ. Proc. Linn Soc." (Bot), vol. 



v., p. 15-6. "With 1 Plate. The nearest ally of this plant is Fors- 

 skol's genus Gymnocarpus, from which a pair of ovules and the 

 bifid stigma distinguish it. 



Baillon, N" Becherches Organogeniques sur la Fleur Femelle des Co- 



niferes. Presented to the Academy of Sciences, April, 1860. The 

 author bases his views upon an extended organogenic study of the 

 floral organs of the order. The development of the bracts, " scales," 

 and female flowers, is detailed from Taxus baccata, Phyllocladus 

 rhomboidalis, Torreya nucifera, Thuja, Pinus resinosa, Salisburia, 

 and Cupressus. 



In Pinus resinosa, L., the cone presents, in its earliest stage, a 

 cylindro-conical axis, bearing numerous unequal alternate bracts, the 

 development of which is arrested at an early period. These, the au- 

 thor regards as the only appendicular organs of the cone. In the axil 

 of each bract originate minute cellular, vertically compressed, ob- 

 tuse processes, which eventually become the trilobate flattened 

 " scales," bearing a pair of female flowers upon the lower portion of 

 the lateral lobes. The median lobe, in the process of growth, ceases 

 to be the apparent apex of the scale, becoming, by a partial arrest, a 

 slightly incurved tooth-like projection borne near the middle of its 

 inner side. Dr. Baillon regards the scale as a metamorphosed branch. 

 Each flower originates with the rudiments of a pair of minute car- 



