97 
ON THE COMPARATIVE MORPHOLOGY OF | 
SCIADOPITYS 
By Maxwewtt T. Masrers, M.D., F.R:S. 
Tue opportunity which I have recently had of examining 
specimens, in various stages of growth, of the curious Umbrella 
Pine of Japan, Sciadopitys verticillata, leads me to offer the following 
notes, which, though fragmentary, may help to fill up our know- 
ledge of the plant and its allies. The evidence I — been able 
to collect enables me to lay down these proposition 
at the true leaves of Sciadopitys are the ‘aoeablowara of the 
true or primordial leaves of Pinus. 
hat the ‘needles ’’* of cineca Ee they occupy 
the same relative position as the eedles”’ of Pinus, are not 
Bu Serta of ares same morphological ‘significan ce. 
. That the bracts of the cone of Sciadopitys are homologous 
with the true iat of that a and also with the bracts of 
Abietinee genera 
hat the seed-scales of the cones of ee are the 
equivalents of the corresponding parts in Abietinea. 
. That the adult seed-scale of Sciadopitys and of Abietinee 
ce the same pasha position with regard to the bract that 
the ‘“‘needle” of Sciadopitys and the are’ of ‘‘needles”’ of 
Pinus ee its sheath) rospoctivady do to the true leaf. 
at although the apparent —— = he same between the 
parts just ‘angansictied, it does not follow their morphological 
again is identical, inasmuch as me oeigit may be different. 
in proliferous cones of various species, the bract may 
become cae or it may remain in the condition of a bract-scale as 
in Sciadopitys. 
. That in such proliferous cones the seed-scales may be 
present, in a more . ots peri 8 state, while in other cases they 
on! be ee 
- That 
ach of these points I propose to offer some remarks, 
based ae articularly on my own observations, and with only 
such moons reference to the copious literature of the subject as 
may be esse 
The sites of the true leaves of Sciadopitys:—The comparison of 
the leaves on the branches of this plant with the Serve guard oe 
and it may be added with the cotyledon, of Pinus is in itse nt 
to establish this proposition, which may be supported cS the state- 
ment that the anatomical conformation is essentially the same in 
I use this word advisedly, in order not to predicate prematurely anything 
a8 to the exact nature of these m 
JOURNAL OF Socks Vou. 22, [Aprin, 1884.] H 
