420 lee Intelligence. 
composed of a fine spongy tissue, which varies in dens nsity between 
the minute canals, thu _ giving rise to the darker and lighter lines. 
There is no appearance of vesicles, or anything like septa or plates, 
either vertical or hinetbonttal,a or walls of any kind around the ce ells, 
The only resemblance to corals seems to be in the —— se 
and radiating striz of the cells, which, seuner; are not tru 
and are quite npeniee like the stris in the cups of many fossil ‘land 
living sponge 
It may not ihe out of place in this connection, to state that I 
have scarcely any doubts, after examining a good series of speci- 
mens, that the two species, Palwacis umbonata ae P. eymbia, W., 
von Seebach, are mere varieties of P. obtusa M. & 
which varies greatly in the enon upon which he has proposed 
to separate these two forms 
Il. BOTANY AND ZOOLOGY. ’ 
Pleiandre, with 3 to many stamens, divided into the Zropice . 
the Temperate, and these, each into three or four ultimate sppseanige? “e 9 
with tw 
o ct stamens, much the largest grou 3 
vided into the Microstyla, of sections, the Podostyla, 0 ten, 
and the MM le, of four; and fin thi ——— ais 
e 
; names indicate clearly the 
groups. The present part ends with the tegen and with spe 
cies 105. As respects the European Willows, Dr. Ande rsson agrec® 
comes to hand, we “ee an ae oe eaate the 
as far as relates to N fp prepa al ht of et 
_ Mountains, Perhaps it is not too late to suggest to the as 
SG Se ARPA SNe ONE Ean SPA Noh TR. Se RR eI Ar gD eee ere 
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