366 XIV. PALMELLACE^ (West). [Athroocystis 



MossAMEDKS. — In stagnis Lemna paucicontata tectis cum Typha et 

 Junco prope Aguada ; July 1859. No. 131. 



This alga, by reason of its small families of densely-crowded cells 

 and the nature of its integument, differs considerably from any other 

 genus of Palmellacece. 



10. GL(EOCYSTIS Nag. (1849). 



1. G. gigas Lagerh. in Ofv. Kongl. Vet.-Akad. Forhandl. 1883, 

 no. 2, 63 ; W. et G. S. West, I.e. 



Protococcics gigas Kiitz. Phyc. Germ. 145 (1845); Verwandl. 

 der Infus. fig. vi. 1 (1844). Chlorococcmn gigas (Kiitz.) Grun. 

 LiBONGO. — Ad margines flum. Lifune ; Sept. 1858. No. 204. 



2. G. Rupestris Eabenh. Kryptog. Flor. Sachs. 128 (1863); W. 

 et G. S. West in Journ, Bot. 1897, p. 239. 



Palmella rupestris Lyngb. Tentamen Hydrophyt. Dan. 207, t. 69, 

 fig. D (1819). 



PcjNGO AxDONG(j. — Alga terrestris, ad ligna putrescentia in rnpium 

 convallibus ipsius Preesidii ; Nov. 1856. No. 110. 



3. G. vesiculosa Niig. Gatt. einz. Alg. 66, t. iv. F. (1849) ; W. eb 

 G. S. West, I.e.. 



LiBONGO. — Ad margines flum. Lifune ; Sept. 1 858. No. 204. 



11. UROCOCCUS Kutz (1849). 



1. U. insignis KUtz. Spec. Alg. 207 (1849) ; W. et G. S. 

 West, I.e. 



Hmmatoeoccvs insignis Hass. Brit. Freshw. Alg. 324, t. Ixxx. f. 6 

 (1845). Chroococeus 'niacroeoccus Rabenh. 



HuiLLA. — In paludibus exsiccandis ; April 1860. No. 176. 



After enumerating ' the characters of his " First Subgenus '' of 

 Ho'inatoaoccus Ag., Hassall (Brit. Freshw. Alg. i. 322) says that "the 

 term Ouracoccus might be applied to the species of this subgenus." 

 Improving on this suggestion, Kiitzing, according to the reference on 

 p. 206 of his "Species Algarum," establishes the genus Urococcus of 

 Hassall ; but it cannot be held to constitute publication of a new 

 genus, and, if Urococcus is to stand, it must be as Urococcus Kiitz. 

 Spec. Alg. 206 (1849). 



12. STICHOCOCCUS Nag. (1849); em. Gay (1891). 



1. S. flaccidns Gay, Recherches quelq. Alg. Vertes, 79, t. xi. 

 f. 101-106 (1891) ; W. et G. S. West, I.e. 



Ulothrixjlaceida Kutz. Spec. Algar. 349 (1849). 



LoANDA.— Inter Protococcum botryoidem (Kutz.) Kirchn. ; Oct. 1858. 

 No. 128. 



13. PROTOCOCCUS Ag. (1824). 



1. P. viridis Ag. Syst. Algar. 13 (1824) ; Kiitz. Tab. Phyc. i. 

 (1845-9), p. 3, t. 3 ; W. et G. S. West, I.e. 



Loan DA. — .Ad parietes domorum etc. sEepius bumectatas (also on 

 flower-pots) in ipsa urbe Loanda, ast sparsim. Locus habitationis 

 hujus algae austrum versus spectat ; July 1854. No. 126. 



