ZOOLOGY AND BOTANY, MICROSCOPY, ErC, 315 



Maxonia, a New G-enus.* — C. Christensen founds a new genus, 

 Maxonia, upon the single species Pohjstkhum apiifolinm (Sw.) C. Chr., 

 which has structural characters intermediate between Drijopteris and 

 Poly'botrya. It differs from Drijopteris in having a creeping rhizome, 

 dimorphous leaves, a different kind of pubescence, and an indusium of 

 peculiar development. From Polybotrya it differs in having dorsal 

 sporangium which are confined to the veins, in being less dimorphous, 

 and in possessing an indusium. It occurs in Jamaica, Cuba, and Guate- 

 mala, and has nothing to do with the Fohjhotrya apiifolia J. Smith found 

 in the Philippine Islands. 



Amboina Pteridophyta.f — C. R. W. K. van Alderwerelt van Rosen- 

 burgh publishes an account of the ferns collected by the late C. B. 

 Robinson in Amboina, whose object was to collect a series of speci- 

 mens representative of the forms actually described by Rumphius in 

 the " Herbarium Amboinense " (1741-55). The list contains seventy- 

 seven species and several varieties, including eight which are new to 

 science. Appended is a list of the forty-seven Pteridophyta described 

 by Rumphius, with their modern equivalents, so far as they have been 

 determined. Figures illustrating the structure of new species of Tricho- 

 monas and Dryriioglossum are given. 



Hawaiian Ferns. |—E. B. Copeland, having examined the ferns of 

 the College of Hawaii herbarium, publishes descriptions of five new 

 species belonging to the genera Athyrium, Sadhria, Pteris, Elapho- 

 ylossum, Poly podium, and adds critical notes which clear away diffi- 

 culties in connexion with certain variable and incorrectly determined 

 forms. The novelties were all collected by J. F. Rock. 



Madagascar Ferns.§ — H. V. Rosendahl describes and figures four 

 new species of ferns collected in Madagascar by Mrs. K. R. Afzelius 

 and B. T. Palm during the Swedish Madagascar Expedition of 1912-13. 

 The locality given is Moramanga ; and the genera concerned are 

 Adiantum, AspUnium, JJiplazitcm, and Odontosoria. 



C. Christensen || also describes and figures some new ferns from 

 the same collection — five new species of Dryopteris and two of Asplenium 

 — adding critical notes in English. 



Bryophyta. 

 (By A, Gepp.) 



Fossil Camptothecium.lF — A. J. Grout describes and figures a re- 

 markably well-preserved moss found during the sinking of a well, at 



* Smithsonian Misc. Coll., Ixvi. No. 9 (1916) pp. 1-4. 



+ Philippine Journ. Sci., xi. Sect. C (1916) pp. 101-24 (2 pis.). 



i Philippine Journ. Sci., xi. Sect. C (1916) pp. 171-3. 



§ Arkiv f. Botanik, xiv. No. 18 (1916) 5 pp. (.3 pis.). 



II Arkiv f. Botanik, xiv. No. 19 (1916) 8 pp. (2 pis.). 



•I Bryologist, xx, (1917) p. 9 (1 pi.). 



Y 2 



