226 PALEOBOTANY [Bot. Absts. 



1591. Fragoso, Romualdo Gonzales. La "antracnosis" o "rabia" del guisante." 

 (Ascochyta Pisi Lib.) [Anthracnose or rabies of peas.] Bol. R. Soc. Espanola Hist. Nat. 

 19: 189-196. PL 5 {colored), fig. IS. 1919— See Bot. Absts. 3, Entry 1637. 



1592. Pethybridge, George H. A destructive disease of seedling trees of Thuja gigantea 

 Nutt. Quart. Jour. Forest 13 : 93-97. 1919.— See Bot. Absts. 3, Entry 1652. 



1593. Taubenhatjs, J. J. Pink root of onions. Science 49:217-218. Feb., 1919.— See 

 Bot. Absts. 3, Entry 1653. 



1594. Turconi, M. Unnuovoparassitadeipeperoni (Acrothecium Capsici n. sp.). [Anew 

 parasite of pepper.] Revist. Patol. Veg. 9: 131-133. 1919.— See Bot. Absts. 3, Entry 1665. 



1595. van der Lek, H. A. A. Over de z. g. "verwelkingsziekten," in het bijzonder die, 

 welke door Verticillium alboatrum veroorazzkt worden. [Regarding the so called wilt dis- 

 eases, especially those caused by Verticillium alboatrum.] Tijdschr. Plantenz. 24:205-219. 

 PI. 4, fi#. IS. 1918. Ibid. 25: 17-52. PI. 1-2, fig. 1-4. 1919— See Bot. Absts. 3, Entry 

 1666. 



1596. Wolf, F. A., and R. O. Cromwell. Clover stem rot. North Carolina Agric. Exp. 

 Sta. Tech. Bull. 16. 18 p., PL 1-13. 1919— See Bot. Absts. 3, Entry 1669. 



PALEOBOTANY AND EVOLUTIONARY HISTORY 



Edward W. Berry, Editor 



1597. Bassler, H. A sporangiophoric Lepidophyte from the Carboniferous. Bot. Gaz. 

 68:73-108. PL 9-11. 1919.— Describes fructifications which were apparently those of cer- 

 tain species of Lepidodendron and shows that these depart rather widely from the well known 

 Lepidostrobus type in that the sporophylls comprise stalk and blade and a large adaxial 

 lamellar sporangiophore which bears two large radially elongated sporangia, the whole being 

 normally shed at maturity, since in no cases is the cone axis preserved. For these sporangio- 

 phoric Lepidophytes the new genus Cantheliophorus is proposed, and since they seem to be of 

 great stratigraphic importance, 12 species are discriminated, of which seven are new. The 

 material comes from Maryland, Kansas, Pennsylvania, Scotland, Silesia and Spitzbergen. 



Environmental and phylogenetic considerations are fully discussed and the author con- 

 cludes that the simple relation of the Lycopod sporangium to the sporophyll is a reduction 

 from sporangiophoric ancestors and that the sterile plates of several species of Lepido- 

 strobus and the sterile tissue in Spencerites and Mazocarpon, while favorable to nutrition, 

 are not developed as a result of progressive sterilization but are remnants of the sporangio- 

 phore present in the ancestral lepidophytes. The discovery of Cantheliophorus goes a 

 long way to substantiate this contention and the consequent relationship between the Lepi- 

 dophyta and the Sphenophyllae and Calamariae. — E. II*. Berry. 



1598. Berry, E. W. The Upper Cretaceous Mississippi Gulf. Sci. Monthly 9: 131-144. 

 Fig. 1-6. 1919. — During Triassic, Jurassic and Comanchean (Lower Cretaceous) times 

 southeastern United States was above sea. This land was the scene of the culmination and 

 final extinction of Pteridosperms, ferns, calamites, lepidodendrons and sigillarias that had 

 characterized the coal measures; of the differentiation of the Triassic floras; and of the 

 expansion and wane of cycadophytes of the Jurassic and Comanchean. It witnessed the 

 origin and differentiation of Angiosperms. — The age of mammals in Tertiary times was 

 made possible, as was the development of man beyond the hunting stage, by the fruits and 

 seeds of flowering plants. — The early Upper Cretaceous is a time of surpassing interest to 

 the student of by-gone floras. The Tuscaloosa has the most extensive flora of any of the 

 Cretaceous formations of the Mississippi embayment. It comprises over 150 species, none of 

 which are known in the Eocene of this region. Of the 87 genera, representing 48 families 



