426 NEW PHOSPHORESCENT SPECIES OF AGARICUS. 
of a fifth between the posterior pair, which are the longest. 
Anthers 2-lobed, lobes 1-celled, bursting inwards longitudi- 
nally. Pollen globose, white. Ovary superior, seated in a 
yellow annular disk, 1-celled, with four fleshy, parietal, poly- : 
spermous placentee. Ovules horizontal. Style 1. Stigma of | 
2 plates. Fruita large l-celled berry, with a woody pericarp 
consisting of two indehiscent carpels. Pulp fleshy, formed 
by the increase and union of the placente in which the seeds 
ultimately nidulate irregularly. Seeds roundish, flattened. 
‘Testa coriaceous, loose. Albumen none. Embryo straight. 
Cotyledons thick, roundish, cordate. Radicle next the hilum, 
thick, short.— Trees of intertropical America. Leaves alter- 
nate or clustered, exstipulate. Flowers solitary or in pairs, 
taking their rise from nodes on the stems and branches. 
Vitra pe NATIVIDADE, Province or Govaz, 
Brazit, December, 1839. 
XXVL— Description of a New Phosphorescent Species of d : 
Acanicus. By Mr Georce GanDNEn ; with remarks upon — 
it by the Rev. M. J. BERKELEY. 
One dark night about the beginning of the present month, — 
December, while passing along the streets of the Villa | 
de Natividade, I observed some boys amusing themselves 
with some luminous object, which I at first supposed to be a 
kind of large fire-fly ; but on making inquiry I found it tobe 
_. a beautiful phosphorescent species of Agaricus, and was told | 
-~ thatit grew abundantly in the neighbourhood on the decay- - 
. ing fronds of a dwarf palm. Next day having procured | 
.. better specimens, I was enabled to make the accompanying 
de figure, which, however, is quite characteristic of its ap- 
rance, and the following description. It belongs to 
m Pleurotus of Fries, but does not agree with any 
ies of that tribe described by Sprengel. If 
ame and characterize it as follows :— 494! 
a ni ər which Mr Berkeley thinks 
