Floristik u. Systematik der Phanerogamen — Palaeontologie. 125 



Sheldon, E. P., New species from the Pacific Coast. 1. 



(Bulletin of the Torrey Botanical Club. XXX. iMay 1903. 



p. 308—311.) 



Includes the following: Cheiranthus pacificus; Nemophila mucronata, 

 Eastwood; Aster miicronatus ; A. umbraticus; Artennsia arachnoidea, and 

 Agoseris maritima. Trelease. 



Oliver, F. W., Notes on Fossil Fungi. (New Phytologist 

 London. Vol. II. No. 3. March 1903. p. 49—53. 1 Plate.) 



The author describes a fungus on the pinnules of Alethop- 

 teris aqiiilina Schlotheim, and also certain supposed Chytri- 

 dineous sporangia found in fossil seeds. 



Renault gave an account of the curious pockets in the 

 pinnules of Alethopteris in 1883. In the present paper the 

 author brings forward some additional features, which appear 

 to leave no doubt that the pockets are the fructification of a 

 parasitic fungus. In cross section the pockets appear similar to 

 minute perithecia which when cut in median plane show an 

 ostiolelike aperture; the contained spores are not quite spheri- 

 cal their long diameter being about 16 //. The wall of the 

 pocket is not well defined. 



Two other fungi are described, one occurring in the peri- 

 pheral layers of the nucellus of Polylopliospermiim, and the 

 other in a similar position in Stephanospennum . The first bears 

 a dose resemblance to the sporangium-like vesicles of Grilletia 

 Sphaerospennü (Renault and Bertrand) but the hyphal threads 

 are not preserved. The vesicles vary from 24 // to 40 // in 

 diameter, and appear to have been spherical in form with a 

 beak-like process which was presumably the place of dehis- 

 cence. The second, which may also be referable to a fungus 

 like Grilletia, shows small ovoid bodies with a peculiar slit- 

 like line along the major axis; this may possibly indicate the 

 presence of a lid. 



Attention is called to the comparison drawn , between 

 Grilletia and the Cliytrldineae; and special reference is made to 

 the forms of that group with operculate sporangia. 



A. D. Cotton. 



Seward, A. C, On the occurrence of Dictyozaniites i n 

 England, with remarks on European and Eastern 

 Mesozoic Fl o ras. (Quart. Journ. Geol. Soc. Vol. LIX. 

 London 1903. p. 217—233. PI. XV. and a text figure.) 



This paper contains the first record of the occurrence of 

 Dictyozaniites in the Jurassic plant beds of Yorkshire; a 

 genus previously supposed to be confined to Japan, India and 

 Bornholm. The pinnate fronds are similar in habit to those 

 of Otozamites, but are distinguished among other characters, 

 by the veins forming oblique anastomoses with one another. 

 A new species D. Hawelli is described and figured from the 

 Upleatham outlier near Marske-by-the-Sea, in Yorkshire. 



