390 



gium appears as an ellipsoidal homogeneous mass, the fii-st change 

 which takes place is the formation of a few semi-transparent vesicles 

 just within the sporangium; and these continually increase in number 

 until the whole interior becomes similarly converted. After about a 

 fortnight's interval from this period, a further change occurs, the spo- 

 rangia being covered with long, projecting spines, producing a con- 

 siderable inflation of the original cell- wall of the frond in which they 

 were formed ; a fact which the author considers important, as tending 

 to prove the continued existence of vitality in the cell at this stage. 

 It was stated that in Lyngbya floccosa the spines are exceedingly 

 short ; but, what is remarkable, they are disposed in a regular, spiral 



line about the long axis of the sporangium. In Vesiculifera ? 



the spines are numerous and extraordinarily delicate. In all the 

 above-named species, the observations were made while the sporangia 

 were still within the original frond, so that there is no doubt as to 

 which each belonged. — J. W. 



Notice of Hooker's ' Journal of Botany and Kew Garden Miscellany^ 



No. 35, November, 1851. 



The papers in this number are intituled : — 



* On some Facts tending to show the probability of the Conversion 

 of Asci into Spores in certain Fungi ; by the Rev. M. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq., M.A.' 



' Angiopteris longifolia, Grev, Sf Hook., of Sir William Jackson 

 Hooker's Herbarium, and its Synonyms ; communicated by Dr. W. 

 H. Vriese, Professor of Botany in the Royal University at Leyden.' 



* Florula Hongkongensis : an Enumeration of the Plants collected 

 in the Island of Hong-kong by Capt. J. G. Champion, 95th Reg. ; 

 the determinations revised and the new species described by George 

 Bentham, Esq.' 



' Journal of a Voyage from Sautarem to the Barra do Rio Negro ; 

 by Richard Spruce, Esq.' 



' Contributions to the Botany of Western India ; by N. A. Dalzell, 

 Esq., M.A.' 



* Botanical Information :' — ' Letter on the successful Cultivation of 

 Victoria regia in Philadelphia, U. S. A., addressed to Sir W. J. Hooker 

 by Caleb Cope, Esq.' 



'Notices of Books:' — 'Papers and Proceedings of the Royal 



