No. 3, April, 1921] MORPHOLOGY AND TAXONOMY, BRYOPHYTES 



281 



1965. Trotter, A. Delia supposta partenocarpia del nocciuolo e dei suoi eventuali carat- 

 teri : osservazioni ed esperienze. [On the supposed parthenocarpy of the hazel-nut and its even- 

 tual characters.] Atti R. Accad. Lincei, Roma, Rendiconti CI. Sci. Fis. Mat. e Nat. V, 29^ : 72-76. 

 9 fig. 1920.— Author concludes that vegetative parthenocarpy does not exist in the hazel- 

 nut since the female aments do not develop further if the stigmas are not properly pollinated. 

 He found that at the time the stigmas are pollinated the ovary is not yet formed and that it is 

 formed only in flowers whose stigmas are pollinated. Normally there are two ovules of which 

 one, after the period of fecundation, is destined to abort. Even in the majority of nuts that 

 fall prematurely there exist imperfect seeds with atrophied embryos. He therefore concludes 

 that this is not a case of parthenocarpy but that it may represent a form of degeneration of the 

 reproductive phenomena and may be a true type of abortion similar to that in animals.— 

 F. M. Blodgett. 



1966. ViGUiER, R., ET H. Humbert. Le Cassytha filiformis. Bull. Soc. Philomathique 

 Paris X, 10: 53-54. 1918.— A plant of this species is described, growing on a sandy beach near 

 Tamatave, which had grown over a surface of several square meters without finding a pos- 

 sible host plant, and which was forced therefore to lead an independent existence. It had 

 produced abundant flowers and fruits, and its unusual mode of life seemed not to have entailed 

 any morphological modification. Some of the branches, coming in contact with an older 

 branch of the same plant, had coiled about the latter and pushed suckers into it.— C. E. 

 Allen. 



1967. Weiss, F. E. Seeds and seedlings of orchids. Ann. Rept. and Trans. Manchester 

 Microsc. Soc. 1916: 32-43. Fig. 1-6. 1918.— The small size of the seeds of orchids and the 

 rudimentary condition of the embryo in mature seeds are discussed in relation to the epi- 

 phytic habit of many members of the family. The author describes the mycorhiza of orchids 

 and the bearing of this condition upon their nutrition; the infection of the embryo, previous 

 to the germination of the seed, by the species of Rhizoctonia concerned in mycorhizal develop- 

 ment; the effect upon the fungus of cultivating it in artificial media; and the replacement of 

 the stimulating effect of the fungus in the germination of orchid seeds by the use of salep 

 decoctions. He compares the conditions in Calluna vulgaris, in which case the fungus is 

 already present in the mature seed, with that in orchids, whose seeds must be infected from 

 without. — C. E. Allen. 



IMORPHOLOGY AND TAXONOMY OF BRYOPHYTES 



Alexander W. Evans, Editor 



1968. Anonymous. [Note without title.] Nature 104:572. 1920.— The possible dispo- 

 sition of the important moss herbarium belonging to Jules Cardot is discussed. This her- 

 barium contains between 30,000 and 40,000 specimens, including the types of many new 

 species described by. Cardot.— 0. A. Stevens. 



1969. CuLMANN, P. Contributions k la flore bryologique de la Suisse et de I'Auvergne. 

 [Contributions to the moss flora of Switzerland and the Auvergne.] Rev. Bryologique 47 : 21-24. 

 1920.— Distributional and critical notes are given on 7 hepatics and 8 mosses from Switzer- 

 land and the Auvergne region of central France. Two of the species represent additions to 

 the flora of Switzerland and 2 to the flora of the Auvergne, while several old records are cor- 

 rected. Under the name Lophozia opacifolia a new subspecies or variety of L. incisa, col- 

 lected by the author in Switzerland, is described. — A. W. Evans. 



1970. DiSMiER, G. Le Frullania riparia Hampe et le Marchantia paleacea Bertoloni a 

 Amelie-les-Bains (Pyr.-Or.). Rev. Bryologique 47:24-26. 1920.— The discovery of Frul- 

 lania riparia and Marchantia paleacea at Amelie-les-Bains in the department of Pyr6n^es- 



