Mr. J. Miers on the genus Schwenkia. 185 



capsules." We learn however from Dr. Landsborough's ' Popular 

 History of British Zoophytes/ recently published, that two of its 

 members are furnished with these bodies, Mrs. Gatty having de- 

 tected them on Hippothoa divaricata, and Mr. Peach on Hip. 

 catenularia. I have now to record their occurrence on Eucratea 

 chelata. Some time since Mr. W. Templer informed me that 

 he had procured this species with ovaries, and upon my ex- 

 pressing some doubts on the point, he kindly supplied me with 

 the specimens from which the following description is taken. 

 The ovaries of the Eucratea spring from the fore part of the 

 cells, immediately below the opening, occupying the place of the 

 " spinous process " mentioned in Dr. Johnston's description. 

 They are evidently metamorphosed cells. The lower portion re- 

 sembles the corresponding part of an ordinary cell ; but this is 

 surmounted by a pouch, which contains three or four somewhat 

 circular, opaque, white gemmules (Plate VI. fig. 3). 



The reproductive bodies are enclosed in an inner sac, and 

 there is generally a quantity of granular substance in the lower 

 portion of the ovary. 



EXPLANATION OF PLATES. 

 Plate V. 



A. Campanularia parvula, natural size and magnified. 



B. Campanularia caliculata, natural size and magnified. 



Plate VI. 

 Fig. 1. Cordylophora lacustris, with vesicle. 

 Fig. 2. Bud of Cordylophora. 

 Fig. 3. Two cells of Eucratea chelata, with ovary. 



XVI. — Observations on the Genus Schwenkia. By John Miers, 

 Esq., F.R.S., P.L.S. 



Schwenkia. 



This is a genus of considerable interest, on account of the sin- 

 gular structure of its corolla, which for a long while offered a 

 question difficult of solution. It was considered by Jussieu as 

 nearly allied to Browallia, the two genera being placed by him 

 among the Labiates. Linnaeus, with much penetration, suggested 

 its affinity to the Solanacea, an opinion quite disregarded by 

 succeeding botanists. By Kunth it was classed, together with 

 Broivallia, in the Scrophulariacea. Dr. Lindley, in his ' Introd. 

 to Bot.' p. 224, arranged it among the Primulacets, because the 

 stamens are opposite to the expanded segments of the border of 

 the corolla. Mr. Bentham subsequently pointed out what he 

 considered to be the true nature of those gland-like processes, 



