AFRICAN POTAMOGETONS. 



isf 



*Verhascum Thapsus L. At several stations near Brecon. 



Veronica scrpi/llifulia L. var. hnmijma Dicks. " Moorland of the 

 Brecon Beacon range, not rare; Cwm Cynwyn"; Le Brocq. — V. 

 scutdlata L. Llanfrynach and elsewhere. 



Lathi-ffn Sgitdiiiaiia L. "Lower part of Glen Tarell, and at 

 other stations near Brecon"; Le Brocq. 



Ballota niifva L. var. alha. Very rare. At the junction of tlie 

 Tarell and the Usk. 



Polygonum Persicaria L. var. *elatum. On the Usk, at Tal-y- 

 bont. — P. Bistorta L. Llwch Lane, and other spots near Brecon ; 

 Le Brocq. 



UIuius montaiia Stokes, var. \nitida ; U. caivpestris Sra., the 

 or.linary English form, with the variety with spreading limbs, more 

 suberous young shoots, and more glabrous leaves {sul)er(}sa Ehrh.?), 

 and other varieties, occur in abundance as planted trees in the Usk 

 valley near Crickhowell, and at other places. The var. snberosa 

 Ehrh. ascends the mountain valleys much further than the other 

 vars. of U. ca)iipestr'is, and looks quite spontaneous, as, for example, 

 between Cefn Coed and Nant-du, in the Taf-fawr valley. 



Popidus ■''•]ni(ira L. Several trees, near Crickhowell. 



Kjjtpactis palustris Crantz. " Cwm Serre, and at other stations 

 near Brecon"; Le Brocq. 



Orchis Morio L. Cefn Cantref, near Brecon ; Le Brocq. 



Hahenaria chloroleuca Ridley. Cwm Serre; Blaen-rhyd-nant ; 

 Le Brocq. 



Pohjgonatum mulUflnrnm All, At Senni Bridge, and near 

 Brecon ; Le Brocq. — /-". ■•''(iijiciiiale All. Wooded limestone cliff, 

 Craig Cille, at about 1800 h. 



Carex *curta Good. Rare. Moorland at the head of the Nedd. 

 — C. fulra Good. var. *Hoinschuchiana. Moorland at the head of 

 Dyffryn Crawnon. — Var. ^'wanthocarpa. With the last, at the head 

 of Dyffryn Crawnon. With C. fulva Good., type, in Cwm Taf- 

 fechan. 



Deschampsia ficxnosa Fries, var. montana. Fringing the highest 

 part of the central cliff of the Brecon Beacon ; Craig-y-van-du, 

 abundantly. 



Arena *puhescens Huds. Hill-side (limestone) near Talsaru 

 Station. — A. -fpratensis L. Dan-y-graig lime rocks, near Cefn 

 Coed ; bottom of Cwm Crew, Nant-du. 



AFRICAN POTAMOGETONS. 

 By Arthur Bennett, F.L.S. 



In the Conspectus Florm Africce Messrs. Durand & Schinz have 

 given the names and distribution of the species as known to them. 

 The following notes will augment and supplement their account :^ 



PoTAMOGETON CRispus L. 1 liave seen specimens from Ethiopia, 

 JKordofan, Lake Nyassa, Griqualand, Cape of Good Hope, Vaal 

 River, S.E. Africa, Dammari, and Libyan Desert. 



