260 



Stratum llialli duplex: superins e cellnlis minonbns 

 gubqiiadratis, inferius c cellulis majorihus oblongo-rcctan- 

 gnlaribnSjy iitrinsque cpllnlac \w series couccntvicvs disposi- 

 tae. Sporidia thccis persistentibus recepta. A Padina de- 

 jecta involucri et sororum concentricoriim absentia, a Zo- 

 naria sporidiia inforraiter coaccrvatis diffcrt genus Lamina- 

 rieas respccti; fructijRcatioiiis ropeteng. 



3. PADINELLA PARVULA. Tab. IX. fig. 1 — 3. 



Zoiiaria parvula Grev. Crypt. Fl. t. 360. 



Padina parvula Grev, Alg, Brit, p. 63. — Harvey Ma- 



nual p. 31. 



Mah, plaiita junior in Ceramio rubra, adulla iu Ser- 



^ulis et praeprimis in Ostrea ednli Itiiciisqne a nobis ob- 



servafa, in profnnditate 4 — 6 orgyarnm Bahnsiae snperioris 



v. c. ad Koster. Spccimina e Sedmouih Angliao bcnigne 



luihi communlcaTit Domina GrifJitJis. 



TbaUns undo ocnlo adUuc vjx conspicnrts rcniformis, 

 crcctns, baisi, fibras panctis emittento, matrici adhaerensj 

 deindc, licet rariiis, ngqwe poUicaris, formae indeterminatae, 

 vario modo lobatns, e margine proliticatioues rcniformes 

 sacpe cmittens et matrici paginae inferiori adpressiis, colons 

 olivacei. Sporidia, thecis peraist«niibus cxcepta, ad basin 

 thalli in raaciilas pancissiinas majores, indcterminalae omni- 

 no f'ormae atqnc fi^urae, collccla. 



Obs, Pranennte Cel. Fries loco ,jperisporiHm", termino 

 Hsi Bnmns „thccae." " Nee raagis qnidqaara in salutera Phy- 

 cograpbiae nobis optandiim videtnr qnam ut Tenninologia ad 

 ueteras Cryptog^amiac partes pofiris qnam ad phanerogamaa 

 appticata utantur Phycograpbi, Qui phycograpbiao rudis 

 opus fjiioddam pbycographicum in nianum capit, nouue po- 

 tius de plaiUis pbauerogaiois qiiam cryplogamis se legcre 

 pntat'? Inter Phyceas euim andivimns capanlam, scmina etc, 



