312 PlKeozoosporiiia', Ralfsiacece, Ilalfsia. 



in pustiilas verrucipformes elevata: senilis crustis pluribus sa?pe 

 connuentibus crassiuscula et undi<iue verrucis rugosa. Verrucffi fru- 

 ctificantes filis arctissime stipatis, articulatis, moninformi-clavatis, 

 constitut» suut: iutcr haic sporangia unilocularia pii-ifoi-mla fi.")- 

 SO-IOO «^ iri-:',!! niilulantur. Color spadiceo-olivaceus. De sporangiis 

 plurilocularilius cfr. (liagii. generis. — Var. erythraea Picc. et ririui. 

 iu Piccone Aig. eritr. p. 205, n. oO; crusta minori, tenui, 100-200 

 y. crassa, ubique arcte adnata, suborbiculari, atra, olivacea, con- 

 centrice et subi-adiatim plicata, margine crenulato sublobato; spo- 

 i-angiis oblongis 35-45 » 25. In concha Patellffi in sinu Assa- 

 biensi Africip nrieiit;i.lis 'Issel:. — Varictas li;ec videtur fors;m cum 

 Ralfsia cxpiiiisa J. Ag. comp;iramli. 



2. Ralfsia Bornsti Kuck. JHMii.Tk. Algenvi.g. v. Helgoland (1894), p. 

 245. llg. 15. — CniNt I rrn^siiisc iil;i. rotuiid;it;i. obscure brunne;i. 

 filis erectis {;issimilantil)us) usii ue ad 150 u. altis, cylindraceis et 

 Nsuperne gradatim dilatatis, s;T'p;3 6-artic ulatis, articulis inferioribus 



• valde elongatis subhyalinisque, superio ribus phffiophoi^a pyrenoidi- 

 fera foventibus; sporangiis unilocuhirilins in filis erectis deorsiuu 



• pleurogenis, 75-100 =* 16-25, elongato-piriform ibus; sporangiis plu- 

 rilocuhn-ibus ad 75 v. longis, e transfoi-m;xtione filorum assimilan- 

 tiniii ortis, longitrorsum ettransverse plurilocell atis. locellis singulis 

 4.5 ij. hitis: pilis ignotis. 



Hah. ad lapides circa iiisuhuii Ile lgoI;inili;im KrcKCfic). — Crustte 

 mox confluentes. Structura ct cr(>si'enti;i ut in lia/ftsia cerracoaa 

 Arescli. Spccies monoica., fructifciM liicm;di tempore. 

 ;!. Balfsia? dsusta (Ag.) J. Ag. Sik I. p. i;:'. (non P.erk). Farl. ]\Iar. 

 .\lg. Ncw Engl. p. 87, KjcUiii. .V Ig. of Arctic Sca p. 248. Pcinke 

 .\lgcnll. westl. Ostsee p. 1«. Fnrns f,i„ij,i}<iris V\. I);ui. t. 420. 

 l>((,li,Hi iii',is(a I'ost. ct Ptiipr. Illustr. p. 11, Zio^aria clcitsfa Ag. Syii. 

 p. 1(1. Svst. p. 2il"i noii Lyngb.?), Facus fuiir/iformis Gunn. Fl. 

 Norv. II. p. Ki;. — Froiide concentrice lobati, lobis subrenifor- 

 iiiilius. iiiibric;i.tis. longitiidiiuditcr striati s. concentrice zonatis. 



Ilai/. \n regionibus imiris ;(rctici i miu-imis ad Groenlandiam 

 (V.mil), ad Lapponiam rossicain (B.^er;, ;id Fnahischam (Tilesius), ad 

 Isliindiam (Lyngbye). — Sectio transversalis (h. e. v erticalis) crust;e 

 ostcndit filameula pro iil;initie mediana utrinque incurvii, ita ut 

 lyi(lfsi,( ili-,isla .1. .V'.^. rronlciii pr;clicat secuudum typuni bihitc- 

 nili-syiiiiiictricmii couslriictaiu ; c coutnirio Ralfsia rerracosa .1. 

 .\g. et Ixalfsia clncaln F;irl. frondcm s:c]iius ;isymnietric(^ cou- 

 struct;iiu pr;ebeiit. — Froiulcs orliicuhOie, 1-2 pollic. diametro ck- 



