fined to tropical plants. Shibata adds five Japan species, ae 
_ hydathodes secrete mainly water, but that they also secrete some sugar 
thus have a relationship to nectaries.— H. C. COWLES. — 
1900] CURRENT LITERATURE 42y 
Miss Thomas was interesting in extending the phenomenon to the dicoty- 
ledons. Before the publication of her paper, however, Nawaschin had 
announced his discovery of double fertilization in Helianthus and Rudbeckia, 
and its probable occurrence in Delphinium; while more recently Land * has 
included Erigeron and Silphium.—J. M. C. 
W. H. Long, JR.,?3 gives an interesting preliminary account of the ecolog- 
ical distribution of fungi in the vicinity of Austin, Texas. In general the con- 
ditions do not seem to favor a great abundance of fungi, the numbers being 
limited by the nature of the soil, the paucity of forests, and the climate. 
Parasitic forms are limited by reason of the xerophytic nature of the host 
leaves. The saprophytic forms are ecologically subdivided into dung inhab- 
iting species, cedar brake fungi, post oak land species, species of grassy 
places, epixylous species, and species of open rocky soil.— H. C. CowLEs. 
Mr. JAMES BRITTEN has done good service to taxonomists in publishing 
in the Journal of Botany (38: 430-443. 1900) a textual reproduction of the 
two pages of Linnaeus’s Systema Naturae, ed. i, which give in tabular form 
the classification of plants. The occasion for this is the great rarity of the 
work, which is a folio, whose preface is dated from Leyden, July 23, 1735.— 
J. M. C. 
Dr. HERMANN VON SCHRENK has published an account of two diseases 
of red cedar, one called “white rot,” and caused by Polyporus juniperians, 
described as a new species; the other called “red rot” or “pecky cedar, 
and caused by Polyporus carneus. Seven plates, mostly from photographs 
of diseased wood, accompany the paper.—J. M. C. 
Y con- 
X HYDATHODES Ww Vv y F 
* Botanical Gazette 30:252-260. 1900. 
*3Bull. Torr. Bot. Club 27 : 579-588. 1900. 
* Bulletin 21, U. S. Dept. of Agric. Div. of Veg. Phys. and Path. 1900. 
*S Bot. Centralbl. 83 : 350. 1900. 
