334 PlKiHizoosiioriiioe, Lomiiiarinccce, \^'ariim. 



AGARUW! Bory [1826] in Dict. class. IX, p. 193 excl. sp., Post. et 

 Riipr. Illustr. Algar. p. 11 ! (Etym. Agar nomen. teste Rumphio, 

 omnium Fucorum apud Malaios). J. Ag. Sp. I, p. 140, Humphrey Anat. 

 and Develop. of Agar. Turneri 1886, De Toni Syst. Uebers. Fu- 

 coid. 1891, p. 177, Kjelim. in Engl. & Prantl Natiirl. Pllanzenfani. 

 97. Lief., p. 256, Mynotrema De la Pyl. [1820] Fl. Terr. Neuve p. 

 23, Lammarke et Faci sp. auct. veter. — Frons mediorris, sti- 

 pitem laminamque foliaceam prgebens; stipes sinlplex, solidus; la- 

 mina indivisa terminalis, mediocostata, plana, crihroso-foraminu- 

 losa (ut videtur perdurans) ; adparatus adlia^sionis in i^lanta adulta 

 filis rhizoideis constans. Sori sporangiorum in laminio utra,(iue 

 pagina maculas irrcgulares efficientes. 



1. Agarum Turneri Post. et Rupr. Illustr. p. 12, tah. XXII. J. Ag. hi\ 

 Sp. p. 141, Humphrcy Anat. Devel. Agar. Turn. 1. c, Aresch. Ohs. 

 Phyc. IV, p. 17, Agartim crihrosam Bory Dict. Cl. IX. p. 193 



ex parte •?, Facus cribrosus Mert. jun. in Linn. IV, p. 52, Facas Aya- 

 rum Turn., Hist. t. 75 !, Fl. Dan. t. 1542, Lyngb. Hydroph. Dan. 

 p. 24, Ag. Sp. I, p. 109 et Syst. p. 269, Laminaria Boryi De hi 

 Pyl. Fl. Terr. Neuv. p. 28?, Fucas Clathrus Esp. Fnc. t. 128, La- 

 minaria Agaram Laniour. Essai p. 22, non De hi PyL — Stipite 

 compresso coriaceo, costa vix hitiore continuato, lamina membra- 

 nacea, foraminibus margine planis, majoribus minoribusque ubi- 

 (jue intermixtis. 



Hal). in mari septentrionaU Asiam AmericanKpie utrin^iue al- 

 luente; ad Groenlandiam (Vahl!), ad oras CamciatcaB (Mertens!) 

 et JaponiiB (Kjellman, Okamura, De Toni); in fretu Behringiano 

 (Kjellman) et ad littus Californiie (Anderson). — Stipes 4-15 cm. 

 longus, basi teretiusculus, superne compressus et ssepe apice tortus 

 deni(iue continuatus costa vix 5 mm. lata, fere onmino plana, sed 

 sul)stantia evidenter firmiore quam ipsius lamina?. Lamina juve- 

 nilis circumscriptione lanceolata^ basi fere ovata ; ut adolescit, basi 

 magis cordata evadit et ambitus fit late ovatus. Foramina in juvcnili 

 planta pauca, in adulta numerosa, majora vix 7-8 mm. diametro 

 oequantia, minoribus vix 2 mm. apertis intermixta, marginibus 

 omnium planis. 



2. Agarum Gmelini Mert. in Linmea IV, p. 51, Post. et Rupr. Illustr. r.iv 

 p. 11, t. 20-21, J. Ag. Sp. I, p. 141, Agarum cribrosam Bory 

 Dict. class. IX, p. 192 ex parte, Fucus Agarum Gmel. Hist. Fuc. 



p. 210, tab. 32. — Stipite compresso, costa duplo latiore conti- 



