336 Dr. GREVILLE’S Account of a Collection of 
Genus 2. Srorotricuum. (Collarium.) 
1. S. badium, thallo cæspitoso, badio ; filis tenuissimis, confer- 
voideis, implexis ; sporidiis concoloribus, ovalibus; acer- 
vulis distinctis, coacervatis. 
On moist wood in a state of decay. 
The aspect of this little plant is very much that of Conferva 
arachnoidea. The threads are jointed, and two or three lines in 
length. It belongs to the genus Collarium of Link in Magaz. der 
Gesell. Naturfor. Freunde zu Berlin ; but that genus has been 
subsequently reunited by him to Sporotrichum, under which it 
is also found in Persoon's Mycologia. "Vide Link in Jahrbuch 
der Gewüchskunde, i. p. 163. 
GASTROMYCI 
(Part of the Linnæan Order Fungi). 
Genus 3. Cyatuus. 
1. C. Crucibulum. Pers. Syn. Fung. p.238. Grev. Cr. FI. t. 34. 
Genus 4. ScLEROTIUM. 
1. S. gyrosum, parvum, nigrum, erumpens, plano-convexum, 
sulcis gyrosis rugosum, intus albidum. Tas. III. f. 1. 
On dead leaves of some monocotyledonous plant. 
Entire plant not more than one or two lines in breadth, more 
or less circular, sometimes ring-like, from the centre being 
unoccupied. The surface is very similar to the shields of some 
species of Gyrophora. | 
FUNGI. 
