^ • ■ «I, mv 
— 38 — 
ovulis depositis Molluscorum aliorumque animalium discernen- 
dis. In Ulvinis sporae (ovula) quaternam vitelli animalis par- 
titionem non excedunt; frons earum, quandoque maxima, cum 
disco prolifero folliculi Graafiani v. stromate ovarii exuberante 
comparanda. In ordinibus Algarum heterosporarum auctores di- 
scernunt: fila confervoidea , antberidia, gongylos et sporas, v. 
keramidia, coccidia, favellidia et spliaerospermia Agardb, 
cystocarpia et tetracbocarpia Kutzing (cistulae et tetraspori- 
dia nobis); interim gongyli Ceramiearum dimorpbi aeque, nec 
non articuli separati Ceramii corallini, germinantes visi sunt 
(vid. Duby, Memoires sur le groiipe de Ceramiees 1832-5). 
In Cbaraceis primo globuli rubri (antberidia?) apparent, filis 
confervoideis pleni, in quorum articulis spermatozoa longissima 
(M eyen) vel animalcula vivacissima, tentaculis mobilissimis 
(Tburet), evolvuntur; serius — gemmae (articuli caulis con- 
tracti, sporocarpia Biscboff); quaenam spermatozois functio? 
an gemmas intrant illasque foecundant?. Summus Algarum 
ordo, alibi aegre inserendus. 
C/ass. ///. POLYPArxii. Familiae 16. 
0. I. Tricuophyta nob» 
1. Galaxaurini (Aplosporeae, Decaisne) : Lia- 
gora, Neomeris, Cymopolia, Actinotricbia, Galaxau- 
ra, Dichotomaria , Alysium. 
2. Corallinini (Gboristosporeae D-ne) : Jania,. 
Corallina, Arthrocardia , Amphiroa, Melobesia (Ma- 
stopbora, Nullipora, Spongites). 
3. Halimedini (Zoosporeae D-ne): Polyphysa 
et Acetabularia? — Halimeda, Udotea, Avrainvillaea^ 
Penicillus, Chamaedoris, Espera. 
4. Spongiini: Ephydatia (Spongilla) , Spongia 
— plura genera autorum, Alcyoncellum Quoy et 
Gaim,, Tbaumasia? 
0. 11. Lithophyta; familiae sec. Ehrenberg: 
1. Milleporini, dodecactinii. 
