Botanical Society of Edinburgh. 283 



Genus Toreumatica. 



• Transverse svtural grooves wide and deep; hack yranvlar. 



8. Toreumatica Hardwickii. 



Transverse sutural groove deep, wide ; tessera of intcrambulacral 

 area liigh, about twice as broad as high, with one large and several 

 scattered unequal smaller tubercles. 



Hab. .' Presented by General llardwicke. 



** Transverse sutural grooves narroiv and small ; back equally 



granular. 



9. Toreumatica granulosa. 



Transverse sutural groove narrow and shallow ; intcrambulacral 

 tessera with a subccutral row of large, and numerous nearly equally 

 scattered smaller tubercles. Near the circumference the secondary 

 tubercles become more distinct. Base concave. 



nab. 1 



*** Transverse sutural grooves indistinct ; back equally tubercular. 



10. Toreumatica Reevesii. 



Depressed, thin ; tessera of intcrambulacral area with a single series 

 of large, and several unequal-sized smaller tubercles. Under-side 

 rounded, concave in the middle ; ambulacral area with two, inter- 

 ambulacral area mth three rows of subequal tubercles ; holes between 

 tessera distinct, between ambulacral tessera circular and deep. 



JIab. China. Presented by J. R. Reeves, Esq. 



**** Transverse sutural grooves indistinct; back with a smooth band, 

 near the suture between the interambnlacral areas. 



11. Toreumatica coNCAVA. 



Depressed, thin ; middle between two intcrambulacral areas on 

 the back smooth; interambulacral tessera with a few unequal tuber- 

 cles near the ambulacra. Under-side deeply concave, largely tuber- 

 cular; ambulacral area with two, interambulacral with three series of 

 large tubercles. — Ilab. China. 



BOTANICAL SOCIETY OF EDINBURGH. 



January 10, 185G. — Colonel Madden, President, in the Chair. 



The following pipers were read : — 



1. "On some Species of Ejnlobium," by Charles C. Babington, 

 M.A., F.R.S. &c. (See page 236.) 



2. " Observations on the Pollen Tube, its growth, histology, and 

 physiology," by P. Martin Duncan, :\I.B. Lond., F.G.S. &c. 



The author details experiments made on Tigridia conchiflora. In 

 this plant the stvle and stigma are at least 4 inches in length, and 

 after the lapse of fourteen hours from the application of pollen-grains, 



