106 BOTANICAL GAZETTE. [ April, 
THE DANGER of laying too much stress upon a spore mnestuselaay 
particularly in the Agaricini, is dwelt u r.M.C. ( ein 
rk-cambium cells, which brings about the gecko ph 4 
cells, resulting in the formation of the swellings. e, pustules step : 
mene at ry up and crack or become hollowed out. forintna the sc a 
arkings. 
harply 
THE Revue Bryologique, 1888, p. 2, A. L. Gronval criticises 8 
some of the conclusions of Venturi as tothe species of Orthotrichum 
a process which does not coincide wholly with M. Gronval’s views. 
Mi many of our American species are treated, ‘the paper is worthy the sien: 
tion of our bryologists. 
DES is the name of certain root organs Peake! by Ladi 
y on certain palms, and discovered to be of use “ 
xération of the plant. They are outgrowths from the root, point 
into the air, and are characterized by having a bo portion antl 
e rest. Dr. Goodale (Am. Jour. Sci., March, 1888), in comm. ade 
on Jost’s communication ee iki Sept., 1837), refers the “cypress 
; knees” ” to this new class of o 
ex: 
OFFICE be the eek ter in gs jan Lege tth ah resem from 
il 
Ais caneltniens are had the Done takés up nearly or quite all the arat is 
able food from the tuber before the Mesias lecays, that such ri om sea 
better antted ti to the needs of the oung plant than nutriment Ir 
oa and that the rapidity with which the tran cb rasr is made depen 
tside eotididie: such, especially, as the condition of the soil. : 
Rev. THos. Morone asphalt ties studies in the Typhaces 1D n. 
Torr. Bot. Club (March) by p ing our six species of Spar fortis 
“They are S. eurycarpum Eng. “s G Morong (a d 
‘ me 3 Ste satin Pachin, » and 8. honePiohtans: Leest. (from Hoon Bs 
na ry § ‘Labrado a 
ike appearance, falls off st — 
- remains undistur bed by the a 
1 Abstract in Bot. Centralblatt, xx xiii, 209. 
