* 
72 THIRSK BOTANICAL EXCHANGE CLUB. 
of them radiating from a centre, while in Microdictyon each side of 
the mesh is formed of a single conferva-like cell. 
On this account I propose to call the genus Cystodictyon. 
CysTODICTYON. 
The frond netted with rounded holes or spaces between the meshes, 
formed of elongate subcylindrical joints, giving out at certain dis- 
tances a radiating fan-like series of cells, the interspaces between 
the longitudinal filament and the fan-like cells being filled up with 
unequal small cells. 
Cystodictyon Leclancherii, t. f.—Anadyomene (?) Leclancherii, De- 
caisne. 
Has. Sooloo Archipelago, Herb. Harvey and Gray. 
EXPLANATION OP Prare XLIV. 
Fig. 1. Grayemma Menziesii, nat. size; 2, magnified section of ditto; 3; 
magnified section of Calomena Brownii ; 4, magnified section of Anadyomene 
Cutlerie ; 5, magnified section of Anadyomene Wrightii ; 6, magnified section 
of Cystodictyon Leclancherii. 
THIRSK BOTANICAL EXCHANGE CLUB. 
(CURATOR’S REPORT FoR 1805.) 
By J. G. Baker, Esq, AND WILLIAM Foccrrr, Esa. 
As in previous years, we propose to give here a brief notice of the 
more interesting plants that have come before us during the past year, 
tricting such notice, as will be seen, to plants of which specimens 
have passed through our hands, notable either on the score of critical 
interest, or as having been found in tracts whence they are not regis- 
tered in the * Cybele Britannica ' and its Supplement. 
Thalictrum flexuosum, var. Through the kindness of Mr. William 
Richardson in sending a bundle of roots and living specimens of the 
Thalictrum of the exposed basaltic crags of Kyloe, near Belford, 
Northumberland, we are enabled to furnish the following description : 
—Stem 1 foot to 18 inches in height, green or purplish, leafy to the 
base, zigzag, hollow in the centre, not compressible, subterete, hardly 
striated towards the base, but marked in the upper part, especially 
below the sheaths, slightly glandular. Lower stipules with adpressed, 
d auricles 
upper with reflexed . Leaves bipinnate ; the leaflets pale green 
