202 Messrs. Berkeley and Broome on British Fungi. 
the manner in which the ends of the branches widen out late¬ 
rally ; but when a branch commences to divide it has just this 
appearance, and probably this character is founded upon tips 
about to divide. 
Heller says, the u punctformigen Zellenmiindungen ” are 
only present at the end of the branch, and speaks of a 
“ Deckel,” although he places it among Cyclostomata. In the 
lower part of a branch it is true that the aperture is oblite¬ 
rated by a subsequent calcareous growth. 
The zooecia are placed in a radial direction round an irre¬ 
gular axis composed of the walls of cavities which open at 
the end of the branch in the growing parts. In section this 
has a somewhat cellular appearance. The external walls are 
in older portions very thick, the supergrowth ultimately en¬ 
tirely covering the oral apertures, when the opercula are found 
imbedded in the theca. This is perforated with pore-tubes, 
which are filled with the chylaqueous fluid as in other species. 
The interior walls are a beautiful calcareous network, being 
much more fragile than in many less solid forms. 
Operculum (15* *) rounded above, subtriangular below, 
elongate, hinge below the muscles, which are at the edge near 
the middle, 0 - 22 millim.^wide, 023 long. 
Log. Miocene : Austria and Hungary. Pliocene : Castro- 
caro, Mt. Titano, Darsena, Parlascio, Leghorn, Amato (A. W.), 
Canitello (A. W.), Asti, Bonpas, Vedennes, Villeneuve-lez 
Avignon (Gard), Chaux de Fonds (Suisse), and generally in 
the Pliocene of Sicily, Freden, Diekholz, Luithorst. Living : 
Mediterranean, common, 20-55 fathoms (FT.). Specimen in 
the British Museum from Algeria. Naples from 40 fathoms 
and deeper. 
[To be continued.] 
XXIV.— Notices of British Fungi. By the Rev. M. J. 
Berkeley, M.A., F.L.S., and C. E. Broome, Esq., 
F.L.S. 
[Continued from ser. 5, vol. i. p. 30.] 
*Agaricus (Lepiota) amia?ithinus } Scop., var. Broadwoodice. 
Pileo hemisphterico luteo, subtiliter tomentoso ; margine in- 
flexo ; stipite tequali annuloque furfuraceo-squamulosis ; la- 
mellis candidis adnatis quandoque decurrentibus. 
Lyne, Sussex, Miss S. Broadwood. 
A very distinct variety if not species. 
1731. A. (Lepiota) mesomorphus , Bull. t. 506. fig. 1; Fr. 
Hym. Eur. p. 38. 
