THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SECOND SERIES.] 



iuced on til 

 accidental 

 above Or. 6 

 paste it ov 

 J.S.H. 



" per litora spargite museum, 



Naiades, et circiJm vitreos considite fontes : 

 Pollice virgineo teneros h\c earpite flores ; 

 Floribus et pictum, divae, replete canistrura. 

 At vos, o Nymph* Craterides, ite sub undas j 

 Ite, recurvato variata corallia trunco 

 Vellite muscosis e rupibus, et mihi conchas 

 Ferte, Deee pelagi, et pingui conchylia succo." 



N. Parthenii Giannettatii Eel. 1. 



Section 3. Co 

 OSDEB. 53. Is 



No. 91. JULY 1855. 



Gen. 



1. HoH7(IIex) 

 1. common 



I. — Observations on the Development of Gonidia (?) from the 

 Cell-contents of the Characese, and on the Circulation of the 

 Mucus-substance of the Cell ; with a Postscript. By H. J. 

 Carter, Esq., Assistant Surgeon H.C.S., Bombay, 



1 HE following is a short' summary of observations on the cell- 

 contents of the Characese made in the island of Bombay during 

 the last eight months, and which want of time only now pre- 

 vents me from communicating in a more extended and complete 

 form. All physiologists are acquainted with the development 

 of the spiral filaments in the globule and a new plant from the 

 nucule, but the passage of the cell- contents into gonidia in this 

 family of the Algae does not seem to have met with description ; 

 nor has, I think, the circulatory movement been satisfactorily 

 explained. 



Before, however, proceeding to the detail of these phsenomena, 

 it is desirable to refresh the memory of the reader with a descrip- 

 tion of the recent cell of the Characese in which the circulation 

 is going on, and for this purpose I shall take an internode of 

 Nitellaj as at once furnishing the simplest and largest type of 

 the cell throughout the family*. 



* The species of Nitella which I have used for my observations is a de- 

 licate, slender plant with long internodes and umbelliferous verticils, the 

 Ann. 5f Mag. N. Hist. Ser. 2. Vol. xvi. 1 



