484 Professor A. C. Seward — Fossil Plants from Cape Colony. 



actual leaf-scars are preserved with the surface-features intact, and 

 it is therefore not possible to describe the position of the leaf-trace 

 scars or the parichnos. Some of the smaller branches have probably- 

 lost less of the cortical tissues than the larger impressions, which 

 represent the Knorria form of the species. In spite of the imperfection 

 of the material there cannot be any serious doubt as to the generic 

 ■nature of the specimens. 



It is impossible to say whether Bothrodendron irregiilare is identical 

 with B. kiltorJcense or with other previously described species, but the 

 additional specimens from the Albany Museum are interesting from 

 the point of view of the wide geographical distribution of this generic 

 type in Lower Carboniferous or Devonian strata. An Australian 

 specimen described by Feistmantel as Cyclostigma sp.* may be com- 

 pared with B. irregulare, and the species C. Jiercyyiianum, figured 

 by "Weiss and by Potonie from Devonian rocks of the Hartz,- is 

 another example of a closely allied or even identical type of stem. 

 The species B. Leslii ^ from the Lower Karroo sandstones of 

 Yereeniging may also be compared with the Witteberg species. 



Hastimima sp. PI. XXVIII, Figs. 5, 6. 



In an account of the fossil flora of the Coal-measures of Brazil, 

 recently published by Dr. David White,* some problematical fossils 

 are described from a plant-bed north-east of Minas, Santa Catharina, 

 under a new generic name Sastimima. Some at least of the specimens 

 referred to Hastimima Whitei exhibit a close resemblance to the fossil 

 from Cape Colony shown in Pigs. 5 and 6, which I propose to designate 

 Sastimima sp., without being able to adduce any conclusive evidence 

 as to the nature of the genus. 



The specimen represented in Pigs. 5, 6 consists of a flat surface 

 with an ill-defined boundary on the left-hand side, and prolonged 

 at the top in Pig. 5, c, a, for a short distance as a naiTow branch. 

 Towards the upper margin the surface of the impression presents 

 on slight magnification a fine scaly appearance, and this becomes 

 gradually more obvious towards the lower edge ; the scaly appearance 

 is caused by numerous slightly projecting elevations terminated 

 distally by a free rounded edge. These scale-like projections are 

 not distributed with any regularity, and in none of them can I detect 

 any indication of a pit such as would be formed by a vascular 

 bundle. At the lower edge, where the impression is more complete, 

 the scales are succeeded rather suddenly by a row of larger rounded 

 ridges (Pig. 5, I), beyond and slightly below which is a narrow strip 

 of shale showing discontinuous vertical ridges and small tubercles. 

 The larger ridges are shown also in Pig. 6, b, which represents the 

 reverse of the specimen shown on Pig. 5. In this view the scale-like 



* Feistmantel, Mem. Geol. Survey, New South Wales, Palteontology, No. 3, 

 1890, pi. ii, fig. 7. 



* Weiss, Jahrh. k. preuss. geolog. Landesanstalt, 1885, p. 175, pi, vii ; Potonie, 

 Alh. k. preuss. geol. Land. (Neue Folge), 1901, Heft xxxvi, p. 32. 



3 Seward, Ann. S. African Museum, 1903, vol. iv, p. 87, pi. xi. 



* Commissao dos Estudos das Minas de Carvao de Pedra do Erasil. Final report 

 by I. C, White, Eio de Janeiro, 1908, p. 589, pis. x, xi. 



