Dr. J. E. Gray on a MS. of Laurence Theodore Gronov. 41 



Fiff. 2. Verrucaria parva, Deak. : — a, in a dn^ state ; 6, in a moist state ; 

 c, slightly magnified ; d, vertical section of thallns and apothecia ; 

 e, ajwthecium magnified ; /, vertical section of the same ; ff, spo- 

 ridia greatly magnified. 



Fiff. 3. Verrucaria Leightonii, Deak. : — a, in a dry state ; 6, in a moist 

 state ; c, shghtly magnified ; d, vertical section of thallus and 

 apothecia ; e, vertical section of apothecium magnified ;/, sporidia 

 greatly magnified. 



Fig. 4. Verrucaria ovata, Deak. : — a, in a drj- state; b, shghtly magnified; 

 c, vertical section of thallus and apothecia ; d, vertical section of 

 apothecium magnified ; e, sporidia greatly magnified. 



Fig. 5. Verrucaria fugax, Deak. : — a, in a dr\' state; b, in a moist state; 

 c, slightly magnified ; d, vertical section of thallus and apothecia ; 

 e, vertical section of apothecium magnified; /, sporidia greatly 

 magnified. 



Fig. 6. Verrucaria perminuta, Deak. : — a, in a dry state ; b, slightly mag- 

 nified ; c, vertical section of thallus and apothecia ; d, vertical 

 section of apothecium magnified; e, sporidia greatly magnified. 



Fig. 7- Verrucaria viridis, Deak. : — a, in a dry state ; 6, in a moist state ; 

 c, shghtly magnified ; d, vertical section of thallus and apothecia ; 

 e, vertical section of apothecium magnified; /, sporidia greatly 

 magnified. 



Fig. 8. Verrucaria plumbea, Ach. : — a, in a dry state ; b, shghtly magnified; 

 c, vertical section of thallus and apothecia ; d, vertical section of 

 apothecium magnified ; e, sporidia greatly magnified. 



Fig. 9. Verrucaria Harrimanni, Ach. : — a, in a dry state ; b, shghtly mag- 

 nified ; c, vertical section of thallus and apothecia ; d, sporicGa 

 greatl)' magnified. 



Fig. 10. Verrucaria Gagei ? BoiT. : — a, in a drj- state ; b, in a moist state j 

 c, slightly magnified ; d, vertical section of thallus and apothecia ; 

 e, vertical section of apothecium magnified ; /, vertical section of 

 an old apothecium ; g, apothecium in a perfect state ; h, apothe- 

 cium in an old state ; i, sporidia greatly magnified. 



Fig. 11. Sagedia ampullacea, Deak. : — a, in a dry state; b, slightly mag- 

 nified; c, in a moist state; c?, vertical section of thallus and 

 apothecium; e, vertical section of apothecium; /", sporidia in ascus; 

 g, sporidia greatly magnified. 



Fig. 12. Sagedia calcarea, Deak. : — a, in a dry state ; 6, in a moist state ; 

 c, shghtly magnified ; d, vertical section of thallus and apothecia j 

 e, vertical section of apothecium ; /, sporidia greatly magnified. 



Fig. 13. Sagedia marina, Deak. : — a, in a dry state ; 5, in a moist state ; 

 c, vertical section of thallus and apothecia ; (/, e, vertical sections 

 of apothecia in a moist state ; /, vertical section of apothecium in 

 a dried state ; g, sporidia highly magnified. 



VI. — Account of a MS. of Laurence Theodore Gronov lately 

 purchased for the British Museum, with a Collection of Dry Fish 

 which it describes. By John Edward Gray, Ph.I)., F.R.S., 

 V.P.Z.S. 



A BOX of dry skins of fish arranged between sheets of cartridge 

 paper hke a collection of dry plants, said to be accompanied by 



