PLATE \. 



I Si. Avrairtvillea Mazei Murray and Boodle. Habit of type plant, nat. size. (Guadeloupe, Ma,. 



n°. rie in Herb. Mus. Brit.). [See also fig. 82 on platc IX. | 



ta. Outline of type plant of Chloroplegma papuanum Zan. nat. size. (New Guinea, 



Sorong, Beccari). [Comp 

 ! Frond-filaments of authentic specimen of C. papuanum Zan. 100. (New Guinea, Sorong, 



in Herb. Mus. Brit. ex Herb. Beccari). 

 i Ditto. Frond-filaments of a spirit specimen ioo. (Saleh Bay, Siboga Expedition 8 — lófathoms). 



The laments is greater than in the type. 



1 Ditto. Sporangia, empty, terminal on exserted filaments of the frond too. (Madras, Thurston, 



in Herb. Mus. Brit. ; a. stopper at base of sporangiophore 200. 

 Fig. ijoa and /'. Avrainvillea obscura J. Ag. Outline of type plants, nat. size. ifrom Dr. O. NORDSTEDT's 



sketch of ('. A. AGARDH's types in Herb. Lund). 

 I I > 1 1 1 « > , Frond-filaments of same 100 (from Dr. NORDSTEDT's sketches), 



i 1 and />. Avrainvillea clavatiramea n. sp. Habit of plant, nat. size. (Port Phillip, Corio Bay, 



■J. Bracebridge Wilson in Herb. Mus. Brit.). 



