ae * ae x r3 > 5 ul t “FAS % 1 Lie a bye pases f wv pF \7 wes AX 
Het ORG AR SN Wee de oe ec eae a ee bee WR | aeeh Been ee on ee 
Be ee MN or Nar oe ana Ph ° y, bia! gry ee EN Meee 
Oo 4B Structural ana Lays ogical Botany. 
mi 4 ’ . : j ¥2 : ’ 3 . Ka wry ai 
i i 4 3 sare ) AC 
Atay my eet eet a 
i a, Ie A “San ‘ ‘ 
ey rd see Y : ee 
Stak . “ iS Ti on ie eet Nes: 
Aas ’ LUI 4 \ Al sh 
of : aT) pol ; wy é VES a 
5 ; j : <p si) ee ‘ 
HRs i Ay pier tin - 
ey ' rT pein 
baer, ce “ny, \ 3 hail 
mg \ SS fo rt 
Vs th At i 
ee = | ETT | Sie 
' ye s % ies 
‘a , 
rf ch , i “ 4 
Ais end 
a <s i) 
p y | 
me <a y= 7 
z ae \ (3 f ! 
: “| Sa . 
ie 
A a Z e's ’ 
ee Fic. 28.—Reticulately thick- 
ae ened cell of the touch-me-not, 
ih Impatiens nolt-me-tangere.” it 
ne (x 370.) Faery 
= ¢ ADS | ‘ 
4 : : rare 
be: 
he / 
’ 
i ta 
we 7 -< 
\ 
4 
ee ie: 
Lyi ac met 
ri 2 / 
i a % 
ve ; , i af 
A Y % 
3 
my eae 
ie 2 . 
yas *. 
Ve (X& aN 
< a, . ef 
IN et § | ei “1 
hie: 4 : 
¥ . C. us ; Z : 2 a3 4 n ‘ 
- - * #16, 26.—Bast-cell of Fic. 27.— Wood-cell of Fic. 29.—A_ spiral cell Fee 
from acactus, Opuntia 
bordered pits; wz 72 Tuna, with strongly — gas 
tercrossing spiral pores connecting the thickened spiral band. ~ 
striations. (x 370.) cells of the wood with (x 400.) Sees ines 
Mein sik <3 those of the medullary 
ans : rays. (x 400.) 
Cynanchum _vince- the Scotch fir, with 
es toxicum, with in- 
