210 HOLLICcK: STATUS OF OPHIOGLOSSUM ALLENT L. 
question, all of them from the type locality at Florissant, 
olor. Among these I had no difficulty in finding a dozen 
or more that showed, either distinctly or indistinctly, the 
presence of some kind of a body, as described by Professor 
Cockerell. Nine were selected for illustrating the critical char- 
acters, all of which were photographed and are reproduced, 
natural size, on PLATE 10, FIGS. 6-11, and on PLATE 11, FIGS. I-3; 
and the latter three were also enlarged so as to show the char- 
acters more clearly. The three enlargments are reproduced 
on PLATE II, FIGS. Ia—3a. The salient characters that they 
may be seen to reveal are: (1) a system of reticulate nervation, 
with the nerves of uniform rank throughout; and (2) either an 
indistinct thickening or a well defined, flattened spheroidal 
body (occasionally two), located toward the middle of the 
foliaceous organ. 
The general appearance of the specimens, however, strongly 
suggests that they represent a flattened pod, or a detached 
carpel of a pod, rather than a foliaceous organ, to which are 
attached either immature, or imperfect, or mature and perfect 
seeds. In certain of the specimens, as in those represented on 
PLATE II, FIGS. -I, Ia, and 3, 3a, the seedlike bodies are appar- 
ently in the superior position and are impressed on the exposed 
surface of the specimens. In others, as represented on PLATE 
II, FIGS. 2, 2a, they appear to occupy the inferior position and 
are more or less masked by the overlying tissue. The superior 
position is also indicated in the specimens depicted on PLATE 
10, FIGS. 10, 11, and the inferior position in Fics. 6-9 on the 
same plate. The latter figures also appear to represent more or 
less immature or imperfect specimens; and in the specimen 
represented by Fic. 8 the overlying tissue near the middle was 
carefully chipped away from what appeared to be some kind 
of a body beneath, but nothing was revealed except some 
obscurely defined ridge and furrow markings that appear to repre- 
sent a slight thickening or expansion of the median nerve or rib. 
On PLATE 12, FIG. I, is shown a pressed capsule of Staphylea 
trifolia Linnaeus, and in Fic. 2 the exterior of a detached carpel 
of Koelreuteria bipinnata Franchet. In each may be seen the 
surface inequalities due to the underlying seeds. Fic. 3 repre- 
sents tl exterior of a carpel of Koelreuteria paniculata Laxman; 
Fic. 4, the interior with seeds attached to the alate expansion 
