Myxophycese, Glaucophycese, Asterocystis. 689 



p. 245) speciem unicam, A. confervaceum, amplectons, cui ille 

 filamenta simplicia fhaud ramosa) tribuit. Egregiiis "Wille, suis 

 ipsius observationibus fretus, vix Asterocytin a Goniotricho dif- 

 ferre ceusuit, huic generi species cellulis rubescentibus, illi species 

 cellulis glaucescentibus donatas adscribendas esse perpendens; mo- 

 nosporas, raembrana destitutas, pro Asterocyti ramosa descripsit 

 e toto contentu celluhTe efformatas. 



Secfio I. Chroodactylon Hansg. Prodr, II, p. 131 ampl. — Cellulis longe elli- 

 pticis vel ellipticis raro, post divisionera tantum, subsphsericis. 



1 Asterocytis Wolleana (Hansg.) Lagerh. in AVittr. et Nordst. exs. n. 709 ! ^552 

 Schmitz in E. et P. Nat. Pfl., Bangiac. p. 314, Chroodactylon Wol- 

 leanum Hansg. Ein Reitr. z. Kenntn. der Verbr. der Chromatoph. 

 t. 1, Allogonium Wolleanum Hansg. Phys. u. Alg. Stud. p. 110, 

 Wittr. et Nordst. exs. n. 1074! var. genuinum Hansg. Prodr. II, 

 p. 131, f. 43. — Strato hemisphLierico vel verrucoso, 1-5 mm. diam., 

 molli, hi3te chalybeo-viridi vel pallide olivaceo-glauco vel luteolo- 

 viridulo, molli; cellulis elongato-ellipticis, divisione perfecta, breviter 

 ellipsoideis vel subsph;ericis, utrinque late rotundatis, 9-12 rarius 

 usque ad 15 [t. diam., 1-3-plo longioribus (plerumque 15-24 [x.); 

 chromatophoris nuiltis, parvis, parietalibus, ellipsoideis, setate pro- 

 vecta inconspicuis, demum in chromatophorum unum centralem 

 serugineo-viridem, rarius hiteo-olivaceum, pyrenoidem 4-5 ^. cras- 

 sum centro ostendentem, membrana crassa, plerumque arcta, achroa, 

 12-18 jj.. diam., plerumque inconspicue stratosa; ramis sacciformibus, 

 plus minusve densis, lequicrassis ; membrana ramorum 2-3 [i. cras- 

 sa, achroa. 



Hah. in saxis et rupibus udis, passim in Bohemia, Austria, 

 Dalmatia (Hansgirg), in lacubus Holsatiae (Lemmermann), in Hispa- 

 nia (M.A Lewin) et .Equatoria (Lagerheim). — Forma simplex 

 Hansg. Prodr. II, p. 131: ramis non exsistentibus, Chromatophoris 

 olivaceis vel aureis, rarius a^rugineis vel olivaceis. — Var. calcl- 

 colum Hansg. Ueb. neue Siissw. u. Meeresalgen 1890, pag. 18: 

 thallo pulvinato, molli, subtomentoso, griseo vel coerulescenti-vi- 

 ridi, 4-5 mm. diam., ssepe 1-2 cm. longo, ramis sacculiformibus 

 membranK tegumentalis parum evolutis; cellulis vegetativis typo 

 minoribus. — Ad lapides calcareos in rivulis montanis in cata- 

 racta pr. « Clissa » circa « Spalato » ; etiam ad « Castelvecchio » 

 Dahuatise (A. Hansgirg). 



44 



