LIST OF PUBLICATIONS. 



115 



WAUGHAN, T. Wayland— Continued, 

 ilies. The original description of each genus 

 is given, wherever possible the type species 

 was determined, and a historic sketch of the 

 increase in the knowledge of the genus is given. 

 AntiUoseris (p. 390 1, type species Turbino- 

 seris cocsenica Duncan, and Physoseris (p. 

 390), type species Trochosmilia insignis 

 Duncan, are described as new. 



WALCOTT, Charles D. Cambrian Bra- 

 cliiopoda with descriptions of new genera 

 and species. 



Proc. U. S. Xat. Mus., xxvni, No, 139.5, 

 Feb. 17, 1905, pp. 227-337. 

 In this paper Doctor Walcott continues his 

 studies of the Cambrian Brachiopoda. lie 

 deflnos 29 genera and subgenera of which the 

 following are new: Otusia, Xisusia, Jame- 

 sella, Eostrophomena, Orusia, Finkelnburgia , 

 Loperia, Suantonia, Iphidella, Rustclla, Cur- 

 ticia, Quebecia, and Schuchertina. Descrip- 

 tions of many new species and varieties are 

 given, and a number of old species are rede- 

 scribed. 



WHITE, David. The seeds of Aneiniites. 

 Smithsonian Misc. Colls., xlvii, Quar. 

 issue, II, pt. 3, No. 1550, Dec. 10, 1904, 

 pp. 322-331, pis. XL VII, XL VIII. 

 This paper contains descriptions and fig- 

 ures of a new type of seed — Wardia — found 1)y 

 the author in organic connection with the 

 fronds of a new species of Aneimites (includ- 

 ing Adiantites of author's) described as A. 

 fertilis. Associated with the seeds and frag- 

 ments of fronds, though not yet seen in actual 

 union with the latter, are small fragments of 

 attenuated pedicils bearing very delicate, 

 minute, dichotomous appendages, at the 

 apices of which are thickened bodies re- 

 garded as possible poUen-bearing organs of 

 the Aneimites. Aneimites fertilis, which is 

 the third of the Paleozoic fliieoid genera is 

 found to be seed-bearing and the second to be 

 discovered with seed and frond united, rep- 

 resents a type of froiid not previously sus- 

 pected of being other than a fern which, in 

 fact, it exactly resembles. The discovery of 

 the seeds shows it to be very distinct from the 

 ferns and necessitates its reference to the 

 Cycadofilices or Pteridosperms, where it is 

 placed liy the writer in an order designated 

 as the Lyginodendrales. The type-speci- 

 mens are contained in the collections of the 

 U. S. National Museum. 



Fossil plants (,f the group Cycado- 

 filices. 



Smithsonian Misc. Colls., xlvii, Quar. 

 issue, II, pt. 3, March 2, 1905, pp. 377-390, 



pi. LIII-LV. 



This paper summarizes the principal char- 

 acters of the genera of Paleozoic fossil plants 

 which within the last few years have been 

 segregated l)y most paleobotanists as a group 



WHITE, David— Continued. 



called the "Cycadofilices." The fossils, con- 

 sisting for the most part of silicified stems 

 and petioles, exhibit structures combining 

 characters of ferns, gymnosperms, and more 

 particularly the Cycads. The aspect of the 

 frond and the details of the pinnules arc es- 

 sentially in agreement with those of ferns. 

 The discovery reeently of seeds in connection 

 with two of tlaese plants led to the recognition 

 of the Cycadofilices as constituting a phykun 

 known as the Pteridospermaphyta, most of 

 the types being included in the Pteridosper- 

 mese. The writer suggests the additional 

 inclusion in the Pteridosperms of the genera 

 TriphyUopteris, Eremopteris, Mariopteris, 

 and most of the species included by Lcsque- 

 reux in the genus Pseudopecopteris. The 

 Cycadofilices or Pteridosperms are regarded as 

 intermediate l:)etween ferns and cycads, but 

 it is not urged that any of the fossil genera 

 included therein represent links in the lineal 

 descent of the modern Gymnosperms. On 

 account of the great abundance in the Car- 

 boniferous of Pteridospermic representatives 

 which, in fact, characterize it, it is suggested 

 that, instead of being called the epoch of 

 crj-ptograms, the Carboniferous be designated 

 the epoch of the Pteridosperms. 



Flora of the Brazilian coal meas- 

 ures. 



Science (new series), xxi, 1905, p. 700. 

 Notice of paleobotanical material collected 

 by Dr. I. C. White from two localities in the 

 states of Sao Paulo and Santa Catherina, 

 Brazil. The evidence presented by the plants 

 confirms the inclusion of southern Brazil in 

 the Indo-Australo-.\frican or Glossopteris 

 province, and tends to full}- corroborate the 

 conclusion reached In* M. ZeiUer that the Bra- 

 zilian coalfields are probably of latest Coal 

 Measures age, or possibly Permian, their 

 place being apparently in the Karharbari- 

 Newcastle stage. 



WHITE, David, and SMITH, George Otis. 

 The geology of the Perry Basin in south- 

 eastern Maine. 



U. S. Geol. Surr., Professional Paper No. 

 35, 1905, pp. 1-107, pis. i-vi. 

 The Perry formation, consisting of brownish 

 conglomerates, lying in irregular layers, un- 

 conf ormably upon earlier formations, is shown 

 by its fossil plants to be Upper Devonian age, 

 referable in all probability to the Chemung 

 stage. The belief in the existence of coal 

 in the formation, although maintained^ for 

 nearly seventy years, is not supported by the 

 geologic or paleontologic evidence, and there 

 is no basis for the hope of finding usable coal 

 in any of the concealed parts of the Perry 

 formation or the underlying rocks. Refer- 

 ence is made to several specimens in the Lacoe 

 collection as furnishing unpublished charac- 

 ters in species of Archxopteris. 



