288 Linnean Society, [March 3, 



Obs. Affinis C. bullatce, Schk. DifFert perigyniis tenuioribus pellucidis 

 majoribus oblique adscendentibus, rostro glabro, squamis saepe mucronatis, 

 spicis foemineis pluribus longioribus longius pedunculatis nutantibus, foliis 

 latioribus, culmo scabriori, peduiiculis scabris. 



15. C, spicuLATA, spicis 4 V. 5 cylindraceis pallidis erectis androgynis 

 apice masculis superioribus approximatis sessilibus infima subremota 

 exserte pedunculata, stigraatibus 3, perigyniis triquetro-ellipticis cylin- 

 drico-rostratis bifidis stipitatis superne ad margines scabris nervosis 

 squama lanceolata acuminata v. bispido-cuspidata longioribus. 



Hah. in Montibus Khasiya India Orientalis, Griffith {Herb. Lemann). 

 Obs. Affinis C. setigera, Don (C hymenolepis, Nees), quas perigyniis 

 scabris, squamis testaceis, spicis supremis masculis difFert. 



16. C. MooRCROFTii, spicis 3 V. 4 ovalibus congestis : terminal! masculS : 

 reliquis foemineis v. apice masculis infima pedunculata lanceolato-brac- 

 teata, stigmatibus 3, perigyniis ovali-globosis rostratis bifidis enerviis 

 nitidis glabris v. supernfe ad margines hispidulis pellucide punctulatis 

 stramineis rostro purpurascente longe stipitatis squama lanceolata acutS 

 fusco-purpurea apice marginibusque albo-membranacea brevioribus. 



Hab, in India Orientali, ad ripas fl. Indi in planitie elata Tibetana, " Tibet- 

 Grass of Moorcroft," Falconer in litt. ad Prof. Royle. 



Obs. Afltines C. verna, Schk., C. conglobata, Kit. Differt spicis congestis 

 nunc apice masculis evaginatis, bractea abbreviata, perigyniis enerviis bi- 

 fidis pellucide punctatis, foliis glauco-viridibus demiim flavis. 



17. C. TENUissiMA, spicis 2 V. 3 erectis pedunculatis : terminali mascula 

 cylindrica : reliquis foemineis oblongis laxe pauciflovis exserte pedun- 

 culatis vaginatis remotis, stigmatibus 3, perigyniis trigono-obovatis bre- 

 vissime conico-rostratis rostro recto ore emarginato leviter nervosis 

 squamam aequilatam mucronatam ferrugineam sequantibus. 



C. panicea ? Bunge in Herb. Fielding, 

 Hab. in China Boreali, Bunge. 



Obs, Affinis C. panicecB, L., satis foliis filiformibus, squamis foemineis 

 mucronatis, perigynii rostro recto, distincta. 



March 3. 

 Edward Forster, Esq., V.P., in the Chair. 



Read a paper " On the Aqueous Vapour, and on the dark colour 

 of the Wax, in Bee-hives." By George Newport, Esq., F.R.S. &c. 

 Communicated by the Secretary. 



The author directs attention in this paper to the transpiration of 



