398 
Proceedings of the Royal Society 
200 cones examined ; in an Echinocactus ; and in 
Abies excelsa and Pinus Pinaster (21^2)' Tnjugates in 
an Echinocactus (5^3) ; and in cones of Abies excelsa and 
Pinus Pinaster (^3^3) . 
II. Series, g, |, ^ , &o. 
Cones of Pinus Pinaster , P. Lambertiana , and Abies excelsa 
: Mammillaria cone of Pinus Jeffreyi 
Bijugates of same series in an Echinocactus (7^2); and 
one shoot of another Echinocactus (jj^) • 
ITT Q • 1 1 2 3 . 
III. Senes, ^ , &c. 
Echinocactus ; cone of Pinus Pinaster or possibly 
Bijugate of same series in an Echinocactus (g^g)- 
I V . Series, g , ^ , -q , > ^0. 
Two Echinocacti . 
Y. Series, g , ^ , ~,&c. 
A Cereus? and Mammillaria? (^) • 
-ITT Q * 11 2 3 
VI. oeiies, ^ , g , , 2g 5 txc. 
Melocactus and Echinocactus . 
VII. Series, ^ , |, |, ^ , &c. 
Echinocactus? . Bijugate of same series in the middle 
region of a cone of Pinus Lambertiana in the Museum, 
Edinburgh Botanic G-arden ; the two parallel spirals, 
