604 Eu-Florideze, Plocamiez, Halosaccion. 
dochromate vix colorato. Stratum exterius cellulis oblongis ver- 
ticalibus, colorato endochromate farctis, constituitur. Fructus parum 
cogniti. Cystocarpia ignota. Tetrasporangia (ubi eognita) occurrunt 
infra superficiem sparsa sed plerumque plurima et satis magna 
demum cruciatim divisa. J. Ag. Sp. II, p. 956. 
Subgen. I. HALosACCioN (Kuetz.) J. Ag. Sp. Il, p. 357, Epier. p. 258: Species 
frondibus obovatis subsimplieibus gregariis, nune a fronde vetustà prolifi- 
cantibus. 
1. Halosaccion fucicola (Post. et Rupr.) Rupr. Alg. Ochot. in anim. 
sub.$ 15, p. 2993, J. Ag. Sp. IL, p. 358, Epier. p. 258, Dwmontia 
f«cicola Post. et Rupr. Illustr. p. 19, t. 35, fig. A et tab. XL, 
fig. 80 et 81, Kuetz. Sp. p. 720, Halosaccion saccatum. Kuetz. 'Tab. 
Phye. XVI, t. 78, f. a-b, Halosaccion radicans KR. et Halosaccion 
decapitatum Post. et Rupr. (fid. Rupr. 1l. c., Kuetz. Tab. Phye. 
XVI, t. 79, f. a-h, Dumontia decapitata Post. et Rupr. Ilustr. p. 19, 
t. 35, f. E (frondibus apiee hiantibus rarius clausis)?, Kuetz. Sp. 
p. 720, Dwumontia saccata Kuetz. Sp. p. 719 p. p. — Frondibus 
c:spitosis, simplicibus, obconicis, membranaceis et exsiccatione 
collabentibus, inferne in stipitem brevem sensim attenuatis. 
Hab.in Fuco vesiculoso in oceano Pacifico arctico ad insu- 
lam Sitcham et Unalaschkam (LuETKE); in Rhodomela Larici 
ad insulam Siteham (PosrELs et RuPnEouT) nec non in freto Be- 
ringiano (KJELLMAN). — Burs:? seu frondes membranacese, 2-4,5 
cm. longs, basi in stipitem brevem, 2—-4,5 millim. longum atte- 
nuatz. Color violaceus, exsiccatione vix mutatus. Substantia mem- 
branacea, in sicco fragilis. Specimina in freto Beringiano lecta, 
teste Kjellman Om Beringhafv. Algfl. p. 29, sunt tetrasporangifera. 
Halosaccion Hydrophora (Post. et Rupr.) J. Ag. Sp. II, p. 958 ex 
parte, Epicr. p. 258 (non Halosaecion Hydrophora. Harv. Alg. Au- 
stral. exsice. sub n. 419), Dumontia Hydrophora Post. et Rupr. 
Illustr. p. 19, t. 55, fig. C, Halosaccion hydrophorwm Kuetz. Tab. 
Phye. XVI, tab. 78, f. c, J. Ag. Epier. p. 258, Halosaecion glan- 
diforme hupr. Alg. Ochot p. 279, tab. 16, Fwcus saccatus "Turn. 
tab. 241, fig. d sinistra?, Halymenia saccata Ag. partim, Ulva 
glandiformis Gmel. Hist. Fuc. pag. 232?, — Frondibus gregariis, 
simplicibus, nune e fronde adultiore proliferis elliptico-obovatis sub- 
coriaceo-membranaceis, in stipitem subdistinctum brevem abruptius 
abeuntibus. 
Hab. in conchis et saxis in oceano Pacifico arctico ad littora 

1085 
1086 


