1887-ss.] Marine Algce of Elie. 161 



48. Clachpliora refracta, Kutz. 



In pools near low- water mark at 10 and 12. 



49. Cladoplwra rupestris, Kutz. 



Common on rocks between tide marks, and at a lower 

 level ; rarely epiphytic on other Algae. All the year. 

 Fruit in summer. 



50. Cladoplwra uncialis, Harv. 



At 8 and 12, on flat rocks and stones near low-water 

 mark. Life period, from spring one year till summer 

 the next. In best condition in July, old plants 

 losing their gloss, and becoming lighter in shade. 



51. Cladoplwra (new species). 



In shallow pools at 7, above the high-water mark of 

 neap tides. This is a minute species, much and 

 irregularly branched, with joints from 8 to 12 times 

 as long as broad. It was growing in some abundance 

 in August 1885, but had disappeared a month after- 

 wards, when I returned to the locality in order to 

 watch the plant. None of the specimens were suffi- 

 ciently perfect to admit of the species being satisfac- 

 torily determined, nor has the plant since appeared. 



52. Cladosteplius piluinosus, Holmes. 



In a shaded pool at 2, often in fine specimens ; always 

 submerged. Perennial. Fruit in winter. This species 

 is one of the specialities of the district. It much 

 resembles the Spliacclaria plumosa of English 

 botanists, especially when barren, and both were 

 formerly confounded in the Chmtop)teris plumosa of 

 Kutzing. I found it here in 1879, and, noticing 

 some differences in its structure from Sphacelaria 

 plumosa, suggested that it was entitled to rank as a 

 sub-species or permanent variety of that plant. I 

 observed the ramuli to be thicker in proportion, and 

 to taper more suddenly towards the apex, and the 

 pinnae to be longer and less rigid, especially in 

 young plants, also more closely set on the ramuli, 

 and at a more acute angle. Mr Holmes, however, 

 subsequently obtained fruited specimens, and, having 

 thus been enabled to ascertain the true affinities of 

 the plant, has shown that it belongs to the genus 

 Cladosteplms. 



