Dr Graham's Litt of Bare Plants, 176 



below its base. Calyx cun'ed, witli five blunt but prominent angles, 

 coloured above, green below ; teeth five, subulate, unequal, the lowest 

 the longest. Corolla flesh-coloured, agreeably perfumed; limb very 

 oblique and very unequal, above glabrous, except towards the throat, 

 where, especially on the lower side, it is pubescent, below very slightly 

 hairy ; lobes obovato -linear ; tube curved, scarcely longer than the ca- 

 lyx, hairy both within and without, excepting where inclosed within 

 the tube of the calyx, where, both within and without, it is glabrous. 

 Stamens very unequal, the longer rising from the lower side of the 

 flower, and projecting into the faux ; filaments hairy, those of the shor- 

 ter stamens adhering to the middle of the corolla, the longer some- 

 what farther ; anthers ovate ; pollen granules small and round. Pistil 

 rather shorter than the stamens, eveiywherc glabrous ; germcn ovate, 

 green ; style slightly curved, colourless ; stigma bilobate, the upper 

 lobe very small, the lower curved downwards. 



We received this plant, without name, at the Royal Botanic Garden,from 

 the gai-den of the Dublin Society, and understood it had been imported 

 from Buenos Ayres. It flowered in the greenhouse. In the arrange- 

 ment of the species it should probably stand next Verbena platensis. 



Before I was aware of the tubers on the root, I had given this plant the 

 specific name of lohcUoides, and I believe it exists in various collections 

 so marked; but as no account of it has been published, I do not hesi- 

 tate to substitute the far more appropriate designation now given. 



Proceedings of the Wernerian Natural History Society. 

 (Continued from vol. xxviii. p. 414.) 



March 21. 1840 — Dr Traill, V. P. in the Chair.— Mr James 

 Wilson read an account of Mr Shaw's experimental observations 

 on the fry of the Salmon ; illustrating the same by specimens of 

 the fish in its various sta^s 



Api-il 4. — Professor Jameson, President, in the Chair. — ^Mr 

 William Nicol stated the result of his observations on the opti- 

 cal properties of Greenockite. The specimen employed was a 

 cleavag-e plate, extremely thin, and so narrow as barely to cover 

 an aperture of about the thirtieth part of an inch in diameter. It 

 was highly transparent, and of a de^p yellow colour. On trans- 

 mitting through it the polarized light of dullish clouds, or that 

 of a deep blue sky, it did not appear to depolarize the light ; but 

 when placed between two single vision prisms of calcareous spar, 

 and exposed to the bright light of a gas burner, or to that of 

 bright white clouds, it depolarized light in the same manner as 

 was done by similar minute poi-tions of crystals possessing one 

 axis of double refraction. On account of the extreme thinness 

 and limited extent of the specimen, the coloured rings could not 

 be brought into view.* 



* An examination of some additional specimens of Greenockite leaves 

 little doubt of that mineral belonging to the rhombohedral system of crys- 

 tallimtion. — Editor. 



