— 563 — 
the seeds from Minas havea numb2r of close relatives in the Nor- 
thern Permo-Carboniferous flora, though none of the latter approach 
so closely the combined features of nucellus and wing, as to make 
difficult the specific distinction. 
The form of the nucellus closely approaches that of the seed 
published by Schmalhausen (1) asa Ginkgo-fruit, from Siberia. 
As noted in my remarks on Arberia there is some evidence, 
insufficient as yet, indicating a union of Cardiocarpon Seixasi with 
the truncate lobes of Arberia minasica, fertile leaves possibly belonging 
to Gangamopturis obovata. However, in view of the general asso- 
ciation of the Samaropsis forms in members of the Cordaiteae in the 
Northern flora, and with Voeggerathiopsis in the Southern, I place the 
species with the Cordattales. Yetit is certains that not all of the 
different types of seeds that would naturally be referred to the Cordai- 
teae in the collection could have been produced by the single apecies of 
Noeggerathiopsis. The correlation of the seed with Arberia would, 
I believe, go far to prove a Cycadofilic relationship for the Cardiocarpon 
SetLast. 
The species described above is named in honor of the collector, 
lingineer, Dr. l’sdras do Prado Seixas, to whose interest and cooperation 
in the work of the Commission we owe a large part of the richly inte- 
resting fossil plant material collected from the locality northeast of 
Minas, 
Locality : Northeast of Minas, Santa Catharina. Jlorizon about 
~65 meters above the granite or 225 meters below the Iraty black shale. 
Lot. 3586, collected by Dr. Seixas; and lot 3921, collected by Dr. 
White. 
Cardiocarpon Moreiranum n. sp. 
Pl. x, Fig. 10 
Seeds very small, nearly round, with a rather broad chalaz ; 
nucellus ovate-round, 5 num or less in altitude and 3,5 mm in trans- 
verse diameter, slightly spiculate, densely striate ; sclerotest well 
marked, narrow at base and nearly 76 mn at nidest near the apex ; 
sarcotest very thin al the base, dnd broadening upward to a width of 
1.5mm at the apex whitch is slightly emarginate to short micropylar 
line. 
(1) Beitr, 2u. Kenntn. Jura, Fl. Kucsnk am Altai 1879, p. 35, pl. iv, fig. 7. 
