112 



^^ 



MES. A. TVUBEE-VAIT BOSSE ON THE 



very distinct. The articulations are at the base of each dichotomy and the internodes 



are as a rule long. 



Dermonema, Greville. 



1. Dermonema dichotomtjm, Harv. 



w 



Harvey, Ceylon Algae, n. 93. 



Schmitz u. Hauptfleiscli in Engler u. Prautl, Natiirl. Pflanzenfam., Tail 1^ Abt. 2, 1896, p. 335. 



De Toni, Syll. Alg. vol. iv. sect. i. 1897, p. 10.2. 



L F ■ 



TerneMahe; dry specimens. 



■m 



Distrilmtion. Ceylon; Formosa; Malay Archipelago. 



Pam. CH^TANGIACE^ 



Gloiophlcea. J. Ag-ardl 



o 



Plate 14. figs. 26, 27.) 



1. Gloiophlcea (?) artictjlata, n. sp. (Plate 12. fig. 1; 



Erondibus dichotomis, articulatis, usque ad 18 cm. altis, ramulos adventitios ex nodis 

 orientes gerentibus; internodiis cylindraceis, subcompressis, ad basin contractis; 

 internodio terminal! apice rotundato. Prondibus constantibus e cylindro centrali 

 fills hyalinis, tenuibus, peripheriam versus excurrentibus contexto. Pilis per 

 dichotomiam divisis, stratum periphericum cellularum minimarum moniliformium 



arete 



ijunctarum et cuticula crassa 



pertarum formantibus. Org 



alcohol. 45 fms 



generationis ignotis. 



Cargados Carajos, dry specimen, 30 fms. ; in 



The algae from Cargados Carajos are barren, the determination is therefore not beyond 



doubt, but the anatomical structure of these plants is so typical and so like that of the 



family CbsetangiacesB (PL 14. figs. 26, 27) that I should be very much surprised if the 



of fructification should prove these algge to belong to another family. Amongst 



the ChsetangiacesB they stand nearest to Gloiophl 



They are distinguished, however 



from Gloiophlcea scinaioides — the only known species of the genus— by their articulate 

 frond ; the internodes are usually— though not always— contracted into a short pedicel- 



like node, and from this 



de adventitious branches may sprin 





b 



as a rule the 



branching is dichotomous. The peripheral layer consists of small cortical cells, covered 



by a rather thick cuticle; these small tightly adhering cortical 

 genus Gloiophlcea from the genus Scinaia. 



distinguish the 



Galaxaura, Lamouroux. 



1. Galaxaura Liebmanni (Aresch.), Kjellm. 



Arescl 



•Akad 



Praslin, reef ; in alcohol. 



J ^ - 1- 



Distribution, Mexico ; Vera Cruz. 



Though Galaxaura lAebmanni is only known from the West Indian tropical seas, the 



peculiar structure of the short cortical filaments and the compact outward appearance 



