一 121 ― 



INitophyllum uncinatum (Turn.) J. A ふ 



Norn. Jap, ； Kagi-2tsnba-nori. 



PL. XXVI. 



Nitophyllum micinatum (Turn.) J. A 57. Sp. Alg. II， p. 654 ； Id, 

 Epicr. p. ^56 ； Ardiss. Phyc. Meclit. I， p, 255 ； 1(1. ， Florid. Ital. Vol, 11. 

 p. 48, Tav. VIII, Fig, 2 ； De Toni Syll A】g. IV, p. 650 ； Hauck 

 Meeresalg^. p. 171 ； Nott Nitophylla of し alif. (Proceed. 01 し alif—. Acad. 

 Sc. Vol. II， 1900), p. 26, PL III, Fig. 12 ; Okam. Alg. Jap. Exsic. ([2】 村, 

 日本海 藻標 品） Fasc. II， No. 66; 岡 村， 日本 藻 額 名; p. 49. — 

 Fucius lacerahis va;\ wiciuatits I urn. hist, tuci tab, oS， np-. c-cl. — 

 Cryptoplciwa lac a' at a Kuetz. Tab. Phyc. 入 VI， tab. 25， fig. e. —— Acro- 

 sorhtni aglaophyhoi des Zanard in Kuetz. Tab. Phyc. 入 lX， t. 10, f, a-b ？ 



Hab. : Mostly 〔>TO\vn upon the branches of Sen で asswu in the 

 calm water ； Provs. Iyo， Tani7o, Shima, Totomi, Sagami, Boshyu, 

 Hitachi, Iwaki . Tetraspores and cystocarps : June — July (Boshyu). 



PL. XXVI. Fig. 15 : portions of diherent forms of Nitophyllum 

 uncinatum ； Fig. i : a typical form bearinp- tetrasporic sori ； veinlets 

 in fig. 5 too strongly represented ； \. — Fig. 6 : portion of the typical 

 frond bearing" cystocarps, \, — i^ip*. 7 : two marp^inal root-like pro- 

 cesses, ―—. 一 np*. 8: cross-section of uncinated portion of frond ； a、 

 outer-, b、 inner-side ； — Fig. 9 : surface-view ot frond showing vein- 

 lets, や. 一 ト ig. 10 ： cross-section of frond, ― Fio-. H ： surface-view 

 of the PTOwinp- marpin of frond, — Fip". 12 : portion of frond show- 

 ing sporophylls, ^. — no*. 13 : surface-view of a tetrasporic sorus, 

 ― Fig. 14：: cross-section of a sporophyll, ぜ. 一 Fig. 15 : portion of 

 fipr. I 小 mao-cl. to show the formation of tetrasporangia from the 

 cells of the intermediate layer, ― \\^, 16 ： cystocarp viewed from 



