376 XX. VAGINAEIE^ (West).' [Microcokus 



4. MICROCOLEtJS Desmaz. (1823). 



1. M. vaginatus Gomont in Joum. de Botaniq. iv. 353 (1890) ; 

 in Ann. Sci. Nat. 7" s6rie, Bot. xv. 355-8, t. 14, f. 12 (1892). 



Osdllatoria vaginata Vauch. Hist. Conferv. 200-1, t. xv. f. 13 

 (1803). 



Var. monticola (Kiitz.) Gomont in Ann. Sci. Nat., I.e., 356 

 (1892) ; W. et G. S. West in Journ. Bot. 1897, p. 272. 



PUNGO Andongo. — Inter Porphyrosiphonem Notarisii et Lynghyam 

 mrwgineo-cceruleam, prope Condo ; March 1857. No. 9. 



2. M. soeiatus W. et G. S. West in Joui-n. Bot. 1897, p. 272. 

 HuiLLA. — -Inter Schisotrichem natantem et Microsporam LSfgrenii, 



in uliginosis editioribus prope Humpata, Empalanca et LopoUo ; 

 May 1860. No. 15. 



This differs from M. lacustris (Rabenh.) Farlow in its narrower 

 trichomes with cylindrical cells, its acutely conical apical cells, and in 

 its firmer sheaths. 



XXI. LYNGBYEiE. 



1. SYMPLOCA Kutz. (1843). 



1. S. Museorum Gomont in Journ. de Botaniq. iv. 354 (1890) ; 

 in Ann. Sci. Nat. 7« serie, Bot. xvi. 110-12, t. 2, f. 9 (1892) ; W. 

 et G. S. West in Journ. Bot. 1897, p. 297. 



Osdllatoria Museorum Ag. Syst. Algar. 65 (1824). 



(a) Crass, trich. 5 '5-6 /i. 



LoANDA. — Ad terram humidam urbis Loandse, tempore pluvio ; 

 April 1854. No. 161. 



(/3) Crass, trich. 8-9 /x,. 



HuiLLA. — Alga atro-viridis, viscoso-gelatinosa, exsiccata fere peni- 

 cilliformis, inter muscos (Bryum No. 25) texta, in maxime umbrosis ; 

 Morro de Monino ; Feb. 1860. No. 181. 



2. LYNGBYA G. Ag. (1824). 



1. L. aureo-fulva W. et G. S. West in Journ. Bot. 1897, p. 298. 

 PuNGO Andongo. — Freq. in humidis ad dextram flum. Cnanza ex 



Candumba usque Quisonde ; March 1857. No. 10. " Alga terrestris, 

 in vivo aureo-fulva vel flavescens, membranis spongiosis latissimis 

 graminum csespitibus intertexta, Droseraceis et Eriocaulonaceis solum 

 spongiosum ofEerens." 



2. L. Martensiana Menegh. Conspect. Algol. Eugan. 12 (1837) ; 

 Gomont in Ann. Sci. Nat. 7" s6rie, Bot. xvi. 145-6, t. 3, f. 17 

 (1892) ; W. et G. S. West, I.e. 



GoLUNGO Alto. — ^Ad muscos prope fontem magn. ad Ban9a do 

 Sobato de Bango ; Sept. 1855. No. 159. 



LoANDA. — Cum Symploea Museorum ad terram humidam urbis 

 Loandae, tempore pluvio ; April 1854. No. 161. 



3. L. aerugineo-csBrulea Gomont, I.e., 146-7, t. 4, f. 1-3 (1892) ; 

 W. et G. S. West, I.e. 



Osdllaria cerugineo-ccendea Kiitz. Phyc. Gener. 185 (1843); 

 Tab. Phyc. i. (1845-9), 28, t. 39, fig. ix. 



