WELWITSCH's AFRICAN FRESHWATER ALG^. 297 



Triphragmium uhnarla (Sebum.). On Spircea Ulmaria: 5. W. 

 Dean ; 6. Hurdcott. 



Phraqmidium fraqariastri (DC). On Potentilla Fraijariastnun 

 (S.W.):'5. W. Grimstead; 6. Pitton ; 9. Compton; 10. Alderbury. 

 — P. sanguisorhiE (DC). On Poterium Sanguisotha: 5. W. Dean ; 

 6. Pitton ; 7. Durnford Down ; 10. Haruham Hill. — P. violaceum 

 (Schultz). Ou Fiubus (fruticosus) : 5. W. Grirastead ; 9. Compton. 

 — P. rnhi (Pers.). On Pmbus {fruticosus) (S.W.) : 5. W. Grimstead; 

 6. Hurdcott; 10. Alderbury. — P. subcorticint(m {^chrsnak). On Fiosa 

 canina : 5. W. Grimstead ; 6. Petersfinger ; 9. Dinton ; 10. Race Plain. 



Endophgllum euphorbia (DC). On EupJwrbia aniygdaloides{S.'^.) ', 



5. Clarendon. 



Gymnosporangiwn davariafor^ue (Jacq.). ^cidium of tbis or of 

 G. confusum Plow, on Cratmjus Oxyacantha : 10. Harnliam Hill. 

 Melampsora helioscopia (Pers.). On Euphorbia Helioscopia{ii.y^.): 



6. Laverstock ; 7. Durnford; 10. Standlyncb. — M. lini (Pers.). 

 On Linum cat/utrticnm : 7. Old Sarum ; 10. Harnham. — M. vitellince 

 (DC). On Salix fragilis : 10. Harnham. 



Coleosporiwn senecionis (Pers.). On Senecio vulgaris : 5. W. Grim- 

 stead ; 6. Winterbourne Earls ; 10. Harnham Hill. 



Uredo syuiphyti DC On Symphytum officinale (S.W.) : 5 & 6. 

 Clarendon ; 7. Stratford ; 10. Bodenbam. 



Caoma exionymi (Gmelin). On Euouymiis europmis : G.Claren- 

 don. — ('. iiiercurialis Pers. On Mercurialis perennis : 5. W. Dean ; 

 10. Alderbury ; Downton. — C. ari-italici Duby. On Arum maculatum : 

 10. Netberbampton. 



jEcidium grossularice (Gmelin). On Fiibes Grossularia : 5. W. Grim- 

 stead ; 6. Winterbourne Earls ; 10. Alderbury. — ^S. leucospermnm. 

 DC On Anemone nemorosa: 5. Bentley Wood; 10. Standlyncb 

 Down. 



WELWITSCH'S AFRICAN FRESHWATER ALGiE. 



By W. West, F.L.S., and G. S. West, A.R.CS. 



(Plates 365-370.) 



(Concluded from p. 272.) 



XXI. — Lyngbye^e . 

 1. Symploca Kiltz. (1843). 



1. S. MusooRUM (Ag.) Gomont in Journ. de Botaniq. iv. 354 

 (1890) ; in Ann. Sci. Nat. 7e serie, Bot. xvi. 110-2, t. 2, f. 9 (1892). 

 Oscillator ia Muscorum Ag. Syst. Algar. 65 (1824). 



(a). Crass, trich. 5*5-6 p. 



Loanda. Ad terram humidam urbis Loandas, tempore pluvio ; 

 April 1854. No. 161. 



{(3). Crass, trich. 8-9 p. 



Huilla. Alga atro-viridis, viscoso-gelatinosa, exsiccata fere peni- 

 cilliformis, inter muscos texta, in maxime umbrosis ; Morro de 

 Monino ; Febr. 1860. No. 181. 



