202 ENGLISH BOTANY. 



another locality in the river Shannon below Portumna. Hundred 

 Stream, near Potter Heighara, Norfolk, A. Bennett. 



England, Ireland. Perennial. Autumn. 



A very variable plant. The Irish specimens I have seen belong to 

 a very small form, with slightly branched, brittle, greatly encrusted 

 stems and branchlets, the latter with 1 or 2 of the lower joints 

 furnished with cortical cells, but sometimes (especially in the lower 

 part of the stem) the branchlets consist of but a single long cell 

 without cortical layers. The primary cortical cells are much more 

 prominent than the secondary cortical cells. The spine-cells and 

 stipule-cells are much smaller in size than in the ordinary continental 

 forms, but Messrs. Groves give a figure of one of the Portumna 

 specimens in Dr. Moore's herbarium, which is furnished with large 

 stipule-cells. 



Nucules appear to be very rare in this plant. I have described 

 them from Nordstedt and Wahlstedt's ' Characese Scandinavian Ex- 

 siccata?,' No. 88. The globules are frequently to be met with, and 

 are much larger than the nucules. 



Tomentose Chara. 



SPECIES VI.— C HARA FCETIDA. A. Braun. 

 Plates 1914 and 1915. 



Monoecious. Dark green or more often greenish-grey or even 

 greenish-white, from being encrusted with carbonate of lime. Stem 

 slender or rather slender, brittle, translucent when not encrusted, but 

 much more usually opaque from having a thick covering of carbonate 

 of lime, strongly spirally striate, clothed with twice as many cortical 

 cells as there are branchlets in a whorl, slightly rough, without spine- 

 cells or with few or (more rarely) numerous scattered papilliform or 

 oblong-cylindrical, generally appressed, obtuse spine-cells, situated on 

 the primary cortical cells in the upper part of the internodes ; stipule- 

 cells in 2 whorls, inconspicuous, resembling papillae. Branchlets 6 to 

 10 in a whorl, mostly 8, long or short, slender, often incurved but 

 sometimes recurved, 5- to 7-jointed ; clothed with cortical cells, except 

 from 2 to 4, mostly 3 joints at the apex, which are naked. Bracts 4, 

 rarely 6, developed on the inner side of the branch, those on \hQ outer 

 side rudimentary or absent, oblong-cylindrical or setaceous, obtuse, the 

 two interior ones longer than the others, and generally twice or more 



