DBLB86ER] U I 



One of our commonest specie-: and though no1 wii 

 beauty, yet one of the least attractive of the genus to which 

 it belongs. When well grown, with a broad wing b 

 stems, its beauty and grace will readily be admitte 

 in average specimens the wing-like margin is much more 

 narrow and is very Liable to injury ; the colour dark 

 more dingy; and tin- ramification less regularly die 



Sometimes, from proliferous growth, the whole up- 

 per part <>t' the frond is thick and bushy. 

 1()(5. angustissima (The very narrow Velesseria)\ frond 

 branaoeo-cartilaginous, compressed, wry narrow, two-. . 

 much branched ; branches alternate, distichous, of un- 

 length, much divided above, and furnished vrith nun., 

 forked raniuli ; tubercles imbedded either in the tips 

 the frond, or in small axillary ramuli j tetraspores for 

 Bori e>n distinct plants) either in the inflated a 

 axillarv, lanceolate ramuli, Griff. Ha/rv. Phyc. Brit.pl. 83. 

 (Atlas, PL XXXIII 

 Delesseria alata, var., Ag. Bhodymenia rostrata, ./. Ag 1 1 

 fcina purpurascens, var., Lyngb. ( heHdium . rostratum, ( i 

 Fucus edatus, var., Turn. F. alatus, junior, Ghn. 

 Hob. Northern Atlantic Ocean. Parasitica] ^n the stems 



urinaria digitata, often accompanying Del, alata. Perennial. 

 Winter and Bpring. 

 It is nearly fifty years since Mr. Brodie first noticed 

 the plant here figured, and sent specimens to Mr. Turner, 

 by whom they were then considered to be a variety. 

 he called angustissima, of Delesseria alata; and in this 

 judgment he was generally followed till the year L840, 

 when, in deference to the repeated protests of Mrs. G 

 fiths, I ventured, in the ' Manual,' to separate and d< - 

 X I r. Brodie*s plant under the temporary name of Gi 1% 

 rostratum, recommending it to the notice of observers 

 adding that "my own opinion on this puzzling matt 

 not very decided." I possess specimens in which I 

 (dearly trace the compressed edge of the frond passii - 

 a very narrow membrane, and others which seem to be 

 exactly intermediate between very narrow alata, and true 

 ftissima. I am therefore now persuaded that Mr. 

 Turner's judgment was strictly correct; Mrs. Griffiths 

 however adheres to her already recorded opinion, and 

 whichever view be eventually adopted, it must at Lei - 

 iwledged that I), angustissima is a very r m ir 

 . and as such deserving of a ['lace in this work. 



