328 BOTANICAL GAZETTE [APRIL 
Another English author‘ of earlier date, however, states the 
nig less sweepingly, as follows: 
would appear . . . . that the Amnularia type of branch ae bears 
cones sere conform to the genus Calamostachys (Stachannularia) ; . But 
this rule is not constant, and we are not in a position to speak of cones ‘of a par- 
ticular type as necessarily characteristic of definite types of Calamitean shoots. 
BeERRY> has stated the problem in a still more positive way 
as follows: ‘‘Some of the Paleostachya cones are of large size and 
they are usually associated with Annularia type of foliage.” This 
opinion is further borne out by the characteristics of the present 
species, Annularia clarkii. The illustrations of this fossil reveal 
several fruiting cones attached to their leafy shoot, the lower right 
hand one being sufficiently distinct to show that the sporangio- 
phores spring from the axils of the leaves. This fact places the 
specimen in the Paleostachya group, and refutes the contention 
by Scotr that Annulariae have always been characterized by 
Calamostachys types of fruiting. The following description of 
Annularia clarkii is offered: 
Verticilli 10-12 foliorum circa quemque nodum; quodque folium 
linearium 4 cm. vel longum paullum, apices acuti, mediae costae 
apparent; fructus ramus quemque nodum quasi 4.5 cm. longus, | 
sporangio-phoreae quasi 1 mm. longae. Duae fruges annectae sunt 
alterno lato stili curvati. Hic ultimus in axilla curtae bractae 
lineariae est, quae fructum superarcuant. Plurimi stili sporosi 
ex unico nodo enascuntur. 
Whorls of 10-12 leaves at each node; each leaf linear, 4 cm. or 
less in length, apex acute, midrib present; fruiting branch at each 
node about 4.5 cm. long, the sporangiophore about 1 mm. long. 
Two spores are attached on either side of a curved stalk. The 
latter is in the axil of linear bracts which overarch the fruit. 
Several spore-bearing stalks seem to spring from a single node. 
Sterile fossils of this species are very common from the Paw- 
tucket, Valley Falls, and Portsmouth sections of Rhode Island, and 
may be found in the Brown University collection. The fruited 
specimen used as the basis of this article is now a part of the Roger 
Williams Park Museum collection, Providence, Rhode Island. 
4 Sewarp, A. C., Fossil plants. Vol. I. p. 364. 1878. 
5 Berry, E. W., Paleobotany: A sketch of the origin and evolution of floras. 
P. 319. 1920 
