^"ls'jV] PKOCEEDINGS of the national MUSKIIM. 2G7 



pus. Descriptions of ihv leaves were relied upon. Since that, owiuij- 

 to tlie kindness of a friend residing- in Japan, Itotli tlie leaves and fruit 

 of forms of Nageiai liave been i)rocured. The Icalk'ts in every respect 

 are identical with those of Nageiopsis, while the imt-like fruits closely 

 resemble some of the smooth, rounded forms described in Mono.i>raph 

 XV, as (Jycadeos]>ermuin. It will be noted that similar fruits are 

 found in the Glen Kose fossils. 



Podozamites species? 

 I'l. xxxvr, Fig. S. 



A single specimeu of the basal ])ortion of a leafl<'t was found among 

 the (lien Jlose fossils, which seems to be a Podozamites. The leadet 

 narrows to the base, as if to form a pedicel. The nerves are strong-, 

 fork near the base, then beconu' l)arallel. They are rather remote, and 

 may belong- to a. form like /', (list((ntincrris of the Potomac of Virginia, 

 but the leaflets are much smaller than any shown by that si)ecies. 



Zamites tenuinervis Font. 



PI. xxwii, Fisijs, :!, 1; I'l. xxx\iii, Fij^s. 1, 2. 



A considerable nund)er of specimens Avere found of a cycad not to 

 be distinguished IVom Zamlics Icniiiiicrr is Font, of the Potcnnac of Vir- 

 ginia. This is by far the most common cycad in the (Hen Kose fossils, 

 and it is noteworthy that it is decidedly the most common Zamites in 

 the Potoniac flora. As is the case with the Potomac fossils, tlie leaflets 

 are fouiul detached, showing that they were easily separated from the 

 stem, leaving a base with a sinus. The only difference between the 

 Texas and Virginia forms is found in the fact that some of the Texas 

 leaflets show nerves rather more remotely placed than those seen iu 

 any of the Potomac forms. The curving shajie fouiul in some of the 

 PotonuK; fossils may be seen in some of the (Jlen Pose forms also. 

 Fig. 4, PI. XXXVII, may be comi)ared with Fig. 1, PI. lxx of Monograph 

 XV of the United States (Jeological Survey. PI. xxxvii, Fig. .'>, of this 

 paper gives the end of a leaflet ; Fig. 2 shows a portion of oneof the broad- 

 est leaflets, and Fig. 1, PI. xxxviii, represents i)ortions of three leaflets 

 that were apparently attached to the same stem. This i)lant is juctty 

 well characterized, and as it seems to have been well established in the 

 Trinity flora it is important as showing a resemblance between that 

 and the Potomac flora. 



floNIFERS. 



donifers are, as stated before, ]ne(lomiiiaiit forms in the (Hen Ivose 

 fossils. They predominate in the number of s[)ecies, and esi)ecially in 

 the i)arts of certain forms cai>a,ble of withstanding long immersion in 

 water. The twigs of such jflants as Freuelopsis, covered with a-dense 

 epidermis, and those of Prachyphylium, jtrotectcd l>y their iml)ricated 

 dense leaves, the compact cones of Pagiophyllum, and the thick 



