90 -SUMMARY OF CURRENT RESEARCHES RELATING TO 



Obituary Notice.* — Bruce Fink writes a abort sketch of the lift: 

 and work of Carolyn Wilson Harris, who died at Lakewood, New 

 Jersey, in May of last year. She collected and studied Lichens for 

 many years, and contributed many papers on the subject to the Bryolo- 

 gist, a journal that, owing to her interest in the matter, has been 

 largely concerned with the study of Lichens as well as of Mosses. She 

 laid emphasis on macroscopic characters or such as could be seen with a 

 hand-lens. Her papers deal with the larger foliose or fruticose species. 



Hasse, H. E. — Additions to the Lichen Flora of Southern California 



[Two species new to California, and one Lecanora margmalis new to 

 science.] Bryologist, xiii. 1910, pp. 111-12. 



Heber Howe. R. (jr.) — Lichens of the Mount Monadnock Region, N.H., No. 5. 



[Species of Stereocaulon and Cladonia, the latter determined by L. Scriba, 



Frankfort.] Bryologist, xiii. (1910) pp. 119-21. 



Merrill, G. R. — Lichen Note3, No. 15. 



[Discussion as to the similarity of Cladonia mitrula and Helopodium 

 cajoitatum.'] Bnjologist, xiii. (1910) pp. 103-5. 



Servit, Mir.— Zur Flechtenflora Norddalmatiens. (The Lichen Flora of N. 

 Dalmatia.) 



[A list of species collected by the author.] 



Magyar Bot. Lapok, ix. (1910) pp. 164-93. 



Mycetozoa. 

 (By A. Lorrain Smith.) 



Colloderma a New Genus of Mycetozoa. |— G. Lister has received 

 from W. Crau two gatherings of a mycetozoon collected by him in 

 Aberdeenshire. She has identified them with specimens previously 

 collected and named by G. Lippert as Didymium oculatum. As the 

 species has no lime crystals it is removed from Didymiaceae and placed 

 in the new genus as above. It is characterized by having two sporangial 

 walls, an outer one gelatinous, and an inner membranaceous. Spores 

 and capillitium are dark purplish-brown. 



Parasites on the Roots of Juncacese.} — E. J. Schwartz finds two 

 distinct parasites on the roots of Jnncacese. One of these, which he 

 has named Sorosphsera Junci, occurred in spherical balls on the roots of 

 Juncus articulatus. He worked out the life-history, which follows that 

 of the previously described *S'. Veronicee. The first stage observed was 

 a small plurinucleate amoeba in one of the root-hairs, in this infection 

 differing from S. Veronicee where the parasite enters at the root apex. 

 The amoebae increase in size, and the nuclei divide. They then break 

 up into a number of small amoeboid organisms ; the nucleus of these 

 divide twice, forming four small bodies ; these become spores which are 

 collected into sorospheres, or are loosely aggregated. The writer places 

 Sorosphsera next to Plasmodiophora. He also describes a fungus, Ento- 



* Bryologist, xiii. (1910) pp. 89-91. 



+ Journ. Bot., xlviii. (1910) pp. 310-12. 



X Ann. Bot., xxiv. (1910) pp. 511-22 (1 pi.). 



