SOS 



\ 



An enumeration of a large number of species, with place' of 

 collection and host plants. Uromyces argophyllce TiXid U, Alopc- 

 airi are described as new. 

 Fungi Novi Brasilienses. P. A. Karsten. (Rev. MycoL xi., 



206, 207). 



(Enrotiopsi 



sp 



r/ 



?/. H. M 



Gaz. xiv. 211-216, PI. XVIL: also reprinted). 

 Hickory — The Shell-bark. (Garden and Forest, ii. 460, 461, fig- 



130). 

 Hot Springs — The Vegetation of. Walter H. Weed. (Am. 



Nat. xxiii. 394-400.) 



The author calls attention to the probability that the vegeta- 

 tion which exists at the present time in or near hot and highly 

 mineralized water, may fairly represent such as Hved in early 

 geological times. The temperature limit to life-supporting waters 

 appears to vary in different localities. The highest is said to be 

 200° Far., noted by Frof. Brewer at Pluton Creek, Cal. At Ischia 

 and in the Yellowstone National Park the limit is about 185°- 

 Algae are alone represented at such temperatures. Diatoms do 

 not appear to be very abundant and several species found in hot 

 springs in the Azores are identical with forms found in cooler 

 waters in Great Britain. One of the most widely distributed of 

 the hot water algae is Hypheothrix laniinosa. This species varies 

 in color according to the temperature, as the following observa- 

 tions made by the author in the Yellowstone region will show : 

 at 90° brown; no, red; 125°, orange; 130°, dark green ; 140°' 

 emerald ; 155°, yellow green ; 164°, pale yellow ; 181°, pale pink; 

 185°, white. The most perfect development was found at a 

 temperature of about 140°. 



Lake Erie Shore as a Botanizing Groiind^The. T. J. W. Bur- 



. (Journ. andProc. Hamilton Assn., February 15, 1889; 

 reprinted). 



In this excellent paper the author calls attention to the large 

 number of species reported from the region by former botanists 

 and explorers, which have not since been seen or noted. A list 

 of twenty-two such species is given, with their reported locali- 



