riiaoozoospoi'iii;i\ 293 



ruin basiu utriu^iuo nornialitor (Uuc lineari-lanceolatse, sequentes 

 voro ovato-ounoiitio ot ouiar^nnato-hiouspidata», doni^iuo a rachide 

 secedentes. Substantia frondis fra<nlis, sicca rhAde niombranacea. 



Ordo III. Phseozoosporinae (Thur.) 



Ph(cozonsporin(i3 Tliur. [1850] in Ann. Sc. Nat., Botan., 3 ser., T. XIV, p. 233 

 {Phcc(jsporece), De Toni [1891] Syst. Uel)ers. Fiicoid. p. 17o. 



Tha]lus multicollularis (rarius i. o. in Syngeneticis et Pha^oca- 

 psaceis uni-pauci-cellularis), forma admodum varius et magnitudine 

 maxime ludens, nonnumquam giganteus, tum filiformis simplex aut 

 ramosus, tum membranaceus intoger lol)atusve, continuus aut cla- 

 thratus, erectus aut horizontaliter expansus, structuram admodum 

 diversam pra^bens. 



Propagatio divisione collularum vegetativa aut fragmentis thalli 

 aut propagulis peculiaribus aut cellulis agilibus (phfeozoosporis). 



Generatio sive zygotis e phseozoogonidiorum (ph?eozoogametorum) 

 copulatione isogama aut hoterogama ortis sive ex evolutione oosphgerse 

 immobilis a phaeozoogameto niinori masculo foecundatai efformatis. 



Conspactus familiarum 



I. Cellulge generationi adhibita^ duplicis generis h. s. minores mobi- 

 les (antherozoidia sistentes) et majores immobiles (oospha^ras sisten- 

 tes) — Acinetcv Kjellm. 



Tilopteridaceoi Thur. — Frons habitum ectocarpoideum prasbens, 

 deorsum saepissime polysiphonia, sursum fere ubique monosiphonia. 



II. Cellul?e generationi adhibita; et mascula; ot freminooe motu (cilio- 

 rum ope) praediti^e. — Zoogoniccv Kjellm. 



A. Phaeozoogameta foeminea multoties majora quam mascula. — 

 Gynocratm Kjellm. 



Catleriaceai Zanard. — Frons plus minus fascifeformis aut di- 

 sciformis, erecta aut decumbens; gametangia heteromorpha. 



B. Phaeozoogameta (in sporangiis plurilocularibus evoluta) et ma- 

 scula ot foeminea magnitudine conformia vel fore conformia. — Iso- 

 gonicoi Kjellm. 



* Heteroblepharea'. — Zoogonidia biciliata ciliis inaequilongis, 

 plus minus latoraliter insertis, uno antice, altero postice verso. 



