28o BOTANICAL GAZETTE [march 



Peck in these groups it is interesting to note that he is credited with i6 species 

 in Russula, ii in Pholiota, and 62 in Cortmarius, and this has to do only with 

 Michigan species. — J. M. C. 



Seedling anatomy. — Holden and Bexon^s have begun a series of studies on 

 the anatomy of teratological seedlings. The first paper deals with seedlings of 

 Cheiranthus Cheiri, which showed " cotyledonary abnormality ranging from 

 hemitricotyly to tetracotyly." The conclusion was reached that there are at 

 least two methods of cotyledonary increase, cotyledonary fission and dichotomy 

 of the growing point of the cotyledon. A third method is somewhat doubt- 

 fully suggested, namely "the downward displacement of one or more epicotyle- 

 donary leaves." — ^J. M. C. 



Apogamy in Camptosorus. — Mrs. Brown^* has described a case of apogamy 

 in C. rhizophyllus that occurred in cultures to determine if apogamy covild be 

 induced by the modification of external conditions. The apogamous outgrowth 

 was in general a cylindrical process, with some interesting details as to shape 

 and structure, in which a cluster of tracheids appeared. Previous experimental 

 work had indicated that bright light and relative dryness were the factors 

 involved; but in this case low nutrition seemed to be more important than 

 either.— J. M. C. 



Tropical species of Eupatorium. — Robinson^^ has published the results 

 of a study of Eupatorium as displayed in the American tropics. The wealth 

 of species illustrates how much of the flora of the world remains to be discovered. 

 There are 39 new species described, in addition to new varieties. He has in- 

 cluded also a revision of the Colombian species, recognizing 93 species dis- 

 tributed among 7 sections. "Keyed recensions" are given also of the species 

 of Venezuela (35) and of Ecuador (50). — J. M. C. 



The orchids of Java. — Smith,^^ in a fifth paper on the orchids of Java, 

 continues to bring to light the remarkably rich orchid flora of that island. He . 

 discusses 61 species representing 27 genera, including 38 new species and 2 new 

 genera (Chroniochilus and Saccolahiopsis). — J. M. C. 



A new genus of Compositae. — Pritzel^' has published a new genus {Base- 

 dowia) of Compositae from Austraha. It resembles Helichrysuni, as the name 

 (B. helichrysoides) suggests. The genus is named for Herbert Basedow, 

 state geologist of South Austraha. — J. M. C. 



^s HoLDEN, H. S., and Bexon, Dorothy, Observations on the anatomy of terato- 

 logical seedlings. I. On the anatomy of some polycotylous seedlings of Cheiranthus 

 Cheiri. Ann. Botany 32:513-530. figs. 17. 1918. 



=^ Brown, Elizabeth Dorothy Wuist, Apogamy in Camptosorus rhizophyllus. 

 Bull. Torr. Bot. Club 46:27-30. pi. 2. 1919. 



^^ Robinson, B. L., Contrib. Gray Herb. Proc. Amer. Acad. 54:235-367. 1918. 



^* Smith, J. J., Die Orchideen von Java. Bull. Jard. Bot. Buitenzorg II. no. 26. 

 pp. 135. 1918. 



29 Pritzel, E., Basedowia, eine neue Gattung der Compositen aus Zentral- 

 Australien. Ber. Deutsch. Bot. Gesell. 36:332-337. pi. 12. 1918. 



