187 



also on the authority of Miss Hutchins's Coiiferva scopulonim, to the section 

 Coadonatffi of my arrangement, (Dillwyn). 

 Calothrix nivea. Plentiful in the sulphur-springs of Llanwrtyd, and it abounds in 

 other sulphur-springs, both in Great Britain and on the continent, nor have I 

 ever seen it in any water that is not impregnated with sulphuretted hydrogen, 

 (Dillwyn). 



distorta. Found by Mr. W. W. Young in a rivulet near Cadoxton, (Dill.) 



mirahilis. On stones and stems of Musci in the stream which runs through 



the wood at Penllergare, (Dillwyn). 

 Oscillatoria vaginata. Plentiful on rocks and stones in the river which runs through 



the wood at Penllergare. 

 Porphyra laciniata. 



Ulva latissima and Lima. Mumbles, the latter by the light-house. 

 Bangia fusco-purpurea. Discovered by Mr. W. W. Young on lime-stone rocks about 



high-water mark, near Dunraven Castle ; and my Conferva atro-purpurea may 



possibly belong to the same species, (Dillwyn). 

 Enteromorpha compressa. Bracelet Bay. 

 Mycinema fulvum. On the ruins of Oystermouth Castle, and the chapter-house at 



Maryam. 

 Chroolepm aureus. On stones by the side of the Gower road, near the 4th mile-ston« 



from Swansea, and some other shady places, (Dillwyn). 

 Protonema umbrosum. Boggy ground by Singleton wood, and at Penllergare, (Dill.) 



muscicola. First discovered on hedge-banks in a lane on high ground be- 

 tween Gower and Loughor roads, and it is common, growing generally on mosses, 

 in the woods at Penllergare, (Dillwyn). 



Desmidium Swartzii and mucosum. Cromlyn Bog. 



Isthmia ohliquata, Diatoma marinum and Gomphonema paradoxum. Bracelet Bay. 



Schizonema Smithii. Bracelet Bay, and pools among rocks at Mumbles Point. 



Dillwynii. On rocks near low-water mark under the Mumbles light-house. 



J. W. G. GUTCH. 



Art. LVIII. — Varieties. 



124. Chrysosplenium altemifolium is found growing on the borders of a stream in 

 Ashworth wood, two miles from Bury, Lancashire, along with Chrys. oppositifolium. 

 Here also J have found a variety of the last-named plant, a specimen of which I send 

 you, with three instead of two opposite leaves. — N. Buckley ; 22, Grafton St. Fitzroy 

 Square, December 4, 1841. 



125. Note on Primula elatior, Src* ' The Phytologist ' appears to me to oflFer to 

 botanists, particularly those residing in the country, great facilities for making known 

 any observations they may make relative to the science, and especially with regard to 

 our indigenous plants ; and to afford such persons a valuable medium through which 

 they may communicate, and direct the attention of others to, any particular circum- 

 stances connected with the habitats of doubtful species. By the publication of such 



* See also pp. 191 and 192. 



