T A B. CCCCXXX. 



RHIZOMORPHA Stokesii. 



Found in the Challc at the Sand-pits at Blackheath Hill, 

 by Charles Stokes, Esq. in 1811. It is in flat reticulated 

 entangled masses, the main stems compressed, forming various 

 angles, and the shoots and branches nearly at right angles, 

 rounded, and bluntly ended. The Chalk sometimes adhere* 

 to the roughish or more wrinkled surface of the main branches. 

 The whole plant is of a dull foxy brown colour. 



t(^ \^\ r^^ i^- t^i t^»» 



TAB. CCCCXXX I. Fig. 1. 



RHIZOMORPHA Harrimanni. 



JMlAIN stems irregularly angular, brittle, bark or outside 

 breaking frequently at right angles, giving it a bugle neck- 

 lace form ; outside dull brown ; inside w^hite, cottony, tough ; 

 branches long, continuous, undulating. Found in the Minies 

 in the neighbourhood of Keswick by Mr. Crosthwaite, and 

 sent in July, 1806, by the Rev. J. Harriman. No fruit 

 discoverable. 



Fig. 2. 



RHIZOMORPHA variegata. 



Jb OUND three feet under ground at Reading in Berks. 

 Stems long, round, nearly uniform in thickness; smaller 

 branches placed in bundles, lighter coloured than the larger 

 ones ; the smallest lighter still, with a silky lustre. The whole 

 crowded; little or no pith, and no fruit discoverable. 



Fig. 3. 



RHIZOMORPHA Martini 



lyONSISTS of very fine rounded threads, branching in all 

 directions^ mostly serpentine, extremely attenuated and hair- 

 like, matted so as to resemble wool or cotton, or tufted hair; 

 brown in texture, brittle, and woody, bark-like. Mr. Martin 

 found this in large masses in some of the deepest Mines in 

 Derbyshire, and sent it from Buxton. I name it in respect- 

 ful commemoration of the assiduous Author of " Outlines of 

 the Extraneous Fossils," &c. 



^3 



ti^ t^> (^-. '-^J t<^ t,^ 



T A B. CCCCXXXII. 



FIBRILLARIA vinarius. 



The mouse-skin cask Byssus. Dillenius Tab. 1 . Fig. A. 



Jl COULD not resist saying something more about my Tab. 

 .S87, Fig. 3j and recanting something of what I have said 



