(285) 



Zlmmermann, A. tJber einige aufden Plantagen von Ost- und West-Usambara 

 gemachte Beobachtungcn. M. Tfl. fg. (Ber. Land- u. Forstw. Dtsch.-Ost- 

 afrika I. 1903. 4. p. 351—381.) 



D. Sammlungen. 



Okamuna, K. Algae japonicae Exsiccatae, Fasciculus 11. (PublUhcd by the 

 author. Tokyo. July 1903. 30 M.) 



The 50 species contained in the present fasciculus arc as follows: 

 51. Porphyra suborbiculata Kjellm. — 52. Batrachospermum monilifonne 

 Roth. — 53. Batrach. virgatum (Kuetz.) Sirod. — 54. Batrach. Gallaei Sirod. — 

 55. Yatabella hirsula Okam. (Illustr. Mar. Alg. Jap. PI. 1.) — 56. Endocladia 

 complanata Harv. — 57. Gigartina Teedii (Roth.) Lamour. — 58. Gigartina 

 intermedia Sur. — 59. Eucheuma spinosum (L.) d. J. Ag. — 60. Ceratodictyon 

 spongiosum Zanard. — 6t. Gracilaria confervoides (L.) Grev. — 62. Hypnea 

 seticulosa J. Ag. — 63. Hypnea Saidana Holm. — 64. Gastroclonium ovale 

 (Huds.) Kuetz. — 65. Erythrocolon Muelleri (Sond.) J. 7\g. — 66. Nitophyllum 

 uncinatum (Turn.) J. Ag. 



67. Caloglossa Leprieurii (^lont.) J. Ag. var. continua Okam. n. var. Fronds 

 decumbent, irregularly dichotomous or often subalternate, continuous (not con- 

 stricted), slightly bending at apices toward the under surface. 



68. Caloglossa ogasawaraensis Okam. (Syn. Cal. zanzibariensis Goeb.) — 

 69. Acrocystis nana Zanard. (placed by the author near Chondria from the 

 study of the anatomical characters). — 70. Polysiphonia fragilis Sur. — 71. Ptc- 

 rosiphonia pennata (Roth.) Fkbg. — 72. Symphyocladia niarchantioides (Harv.) 

 Fkbg. — 73. Rhodomela Larix (Turn) C. Ag. — 74. Herposiphonia fissidentoidcs 

 (Holm.) Okam. — 75. Heterosiphonia pulchra (Okam.) Fkbg. — 76. Ptilota pecti- 

 nata (Gunn.) Kjclhn, f. typica KjcIIm. — 77. Carpoblcpharis Schmitziana (Rbd.) 

 Okam. — 78. Ceramium clavulatum Ag. — 79. Microcladia corallinae (Mart.) 

 Okam. — 80. Campylaephora hypnaeoides J. Ag. — 81. Gloiopeltis cervicornis 

 (Sur.) Schmitz. — 82. Peyssonnelia caulifcra Okam. — 83. Corallina radiata 

 Yendo. — 84. Zonaria Diesingiana J. Ag. — 85. Scytosiphon lomcntarius (Lyngb.) 

 J. Ag. — 86. Endarachne Binghamiae J. Ag. — 87. Cladosiphon decipiens (Suring.) 

 Okam. (Syn. Mesogloia decipiens Sur. Altered to this genus by the author from 

 the character of plurilocular sporangia). 



88. Cylindrocarpus rugosa Okam. sp. nov. Frond at first forming circular, 

 afterward irregularly expanding, leather-like, chestunt-colourcd, thickish, lubri- 

 cous crust, attaining the size of from a few to 10 cm or more in expansion, 

 adhering to substratum with its whole undersurface, even on the upper surface 

 when young, soon becoming much wrinkled and folded afterwards. 



89. Leathcsia difformis (L.) Arcsch. — 90. Mesogloia crassa Suring. — 

 91. Chordaria abietina Rupr. — 92. Ulva congiobata Kjellm. — 93. Chaetomorpha 



crassa (Ag.) Kuetz. 



94. Chaetomorpha spiralis Okam. sp. nov. Filaments very rigid, deep 

 green, attached to substratum at the beginning, soon detached from the base 

 or coming in contact with other algae which they closely twist round, also 

 entangled and intwJned to each other in spiral manner. Lower articulations 

 sub -cylindrical or more or less constricted and ventricose, about 300 }i thick 

 in the basal cell, soon attaining 600-750// in diameter above, with articu- 

 lations subaequal to the breadth, becoming gradually thicker upward with 



