Eu-Floridese, DumontiaceHe, Weeksia. 1633 



chidc ferc lineari 2 iiim. circitcr lata, per totain lonj^Mtudincni s;rpc 

 dcnsc pinnata, i^innis nunc per spatia seciindatis, niinc ntrinquc 

 exeuntibus, majoribus minoribusquc mixtis. In pinnulis supcriori- 

 bus clavato-linearilnis cystocarpia disposita sunt. 



2. Farlowia compressa J. Ag. Epicr. p. 262. — Fronde complanata, ^^'^ 

 quasi prolificationibus a margine pinnatim excrescentibus conca- 

 tenatis ramosa, pinnis a basi multo tenuiorc cuneato-dilatatis, in- 

 fernc serrato-crenatis, a parte superiorc dilatata prolifjcationcs con- 

 formes emittentibus. 



Ildb. ad sinum « Montcrey » Californiae (D/ C. L, Anderson). 

 — Frons, licet carnosa, tamcn sat conspicue pbmiuscula, in su- 

 prema et latiore partc pinnarum (in cxsiccata) usque G mm. lata, 

 madefacta multo magis cxpansa, 10-15 cm. longa. Margines pin- 

 narum in infcriorc parte (luasi irrogulariter scrrati, serraturis vero 

 nunc obsoletis. 



3. Farlowia mollis (Bail. ct Harv.) Farl. et Setcb. in Setch. & Gardn. 2568 

 Algie of North western Amer. (1903) pag. 354, Gigartlna mollis 

 Bail. et Harv. in Bot. Expl. Exped., Harv. Nereis Bor. Amer. 



p. 175, ColL, Hold. & Setch. Phyc. bor. Amcr. n. 898 



Hah. in oceano Pacifico boreali ad « Pugefs Souml » (Wilkes); 

 in freto « Juan de Fuca » (Harvey); ad « Port Renfrew » (Butler, 

 Polley); ad « Whidbey Island » (Gardner). — Cfr. diagnosim in 

 hoc voluminc Sylioges p. 200, n. 389. 



WEEKSIA Setch. [1901] Notes on Alg^e I, p. 128 (Etym. a dom. J. M. 

 Weeks, Algarum collectore). — Frons orbiculari reniformis, breve 

 stipitata, e margine prolifera, prolificationibus frondi primaria? con- 

 formibus, tribus stratis contexta. Stratum medullare filamentis 

 crassis subtilibusque intcrtextis, strato interracdio (rcgione inte- 

 riori corticis) cellulis amplis rotundatis hyalinis, strato exteriori 

 cellulis minutis coloratis in fila brevia verticalia dispositis con- 

 stante. Cystocarpia por frondem sparsa, immcrsa, carposporarum 

 nuclco renifornii (non distincte lobato). Tetrasporangia ignota. 



Ohs. Frons habitum induit Callymenice, stipitc brevi et disco 

 radicali instructa, sed cystocarpiorum structura siiadet genus esse 

 Dumontiaceis adscribendum. 



1. Weeksia reticulata Setch. Notes on Alg* I, p. 128. — Fronde am- 2569 

 pla, late reniformi, indistincte radiatim venosa, vcnis anastomo- 

 santibus et versus margines sursumque impcrspicuis, 



