Pr'Hi-cit'nijs 



rvw. p»t. 

 L vol. fa 



set tip the wilcUlowei' display during the Olympic period. Coloured 

 slides of this display were among tho'^e shown during the evening. 



Vrar Member- — Miss El*fe Butties. 33 Lansell Road, Toorak, 

 was elected on the nomination of Messrs. Houkc and Suahy and 

 welcomed by tbe President. 



Hxirilntx. — Mr Mdnne> showed mteroseupe slides uf Bryozoa 

 and of cross-sections of a sen urchin's spine*. Miss Raff showed 

 garden -gruwri kangarOo-paw, and sttila »_)f (»<tm(*fiuairf)MS , and 

 Miss Noddy sliuwed variations in eucalypts. 



MICROSCOPICAL GROUP 



The meeting of February 20 was ;i well-attended and most instructive HUP 

 The subject was 'Marine Biology Under the Microscope" and the discussion 

 was opened by Mr. R. Lukey, who covered the items of recent and i<^5ai ! 

 Floraminifera, Polyzoa, Hydrozoa, and the red Sea-weeds. Mrs. Fream? 

 snokc on Marine worms, Gabs, Rrlltlc Star?. Fish skins. Sponges- Holothti- 

 rians and Sea Urchins. 



For rhc March 2\) meeting, Mr XX Meluncs will lead a discussion oi r 

 srindin^ znd niauitCing of rack factions, and members ;tre rcmieMed to bWjJ 

 ftcit microscopes *md an appropriate slide. 



A PRELIMINARY REVISION OF THE GENUS LASTRIOPSIS CHING 



By Marv I). Timiale* 



At the suggestion o( Prot', R. FI. Holuum several years ago 1 undertook: a 

 revision oi the principally tropica! and sub-tropical feffl rcmus Lastrcapst.;. 

 Chmg ascribed only four specie-* to this g£uu$ flfll Hnlttnm in bis Fertut oi 

 Malaya (1954), page 4°£. stated that many more species especially irom 

 Australia should be transferred to it. Below I have given a much emended 

 description of Lasireopxii, as Well as making 2& new combinations. Most oi 

 these species were previously placed in thyofiteyi.t. then in Ctenitxsf or 

 Riuitfjkra by later aolhgrs- 



LASTRZOPSIS Cbing in Bali pan- Mew. /».*/. litcL, Bet. Set:, 8 if) : 

 157 (193R) ; emended by Holttum iit fiffM # Afir%*r: 498 (1954"). 



^'vjiojwwj; Pc/y.<'ir/:H;n section I y urupr,i l vslu'hn7>i Keyscrtnig, /^o*. Cyath. 

 Buna,; II ( 1373), Drvo filer is subgenus Pnr{it'nt\\Uichitti\ ( Kevserl'tngJ C. 

 Chr"in I'td. Sttsk Skr,, .kck S, 6 : 93 I 1980}. Pari* (rolvsttc faun (Keyserliug I 

 Chir.g in .SiwynJxettia .5 (V): 239 (1940). 



Terrestrial ferns, Rlnsomc long-creeping, shortly creeping or rarely creel , 

 scales- thin, narrowly lanceolate to narrowly ovate, brown or rarely castaneous 

 or almost Mack, the apex acute or acuminate, the cells thick-walled, rec- 

 tangular or hexagonal, the lamina red or yellow, the margin entire, sh&htty 

 •denticulate (rarely markedly denticulate) or with a few fimbriate or glandular- 

 headed processes ^ never clathrate not* iridescent, ( /->wrf,s large, decompound. 

 qiiinquangular, with the lowest pair oi primary pinnae strongly basiscopically 

 produced, catadrcmous throughout or more often anadromous in the upu-?x 

 segments* rarely arradromous throughout, viviparous by scaly buds in tome 

 atih Australian species, l.tai -margin thickened and decurrent along the costar. 

 Mam rJuichu bordered above by two prominent ridges which are continua- 

 tions of the thickened leal-margin of the pinna**, the intervening , broad. 



* SfrUOfUt Herbarium, !iv<lney. 



r .Sec CDpclaml, Gsntra t-'itiatm t^J-4 (jW ) 



