129 
Pinus macrocarpa. (Coulter's Pine.) (Garden, xxxi., p. 378; 
two figures.) 
Plant Heliostat—Byron D. Halsted. (Bot. Gaz., xii., pp. 82, 83.) 
Professor Halsted describes the curious habit of the leaves of 
Malva borealis in Southern California of following the sun in its 
daily course, always presenting their upper surfaces to the light. 
In cloudy weather this heliotropism is not nearly so marked. 
Plants Collected in and around Truro, during the Summer of 
1885—Supplementary List of —G. G. Campbell. (Proc. and 
Trans. Nova Scotian Inst. Nat. Sci., vi., pp. 283-285.) 
53 species are enumerated. 
Plants of the Island of Rhode Island—WNative.—Il. (Proc. 
Newport Nat. Hist. Soc., 1885-6, pp. 13-15.) 
Rhamnus—Californian Species of. (Pharm, Era.,i., p. 150, from — 
a paper by Jas. G. Steele in Pacific Rec. Med. and Surg.) 
Scrophularia aquatica and S. nodosa—The Inflorescence, Floral 
Structure and Fertilization of —T. Wemyss Fulton. (Trans. 
and Proc. Bot. Soc., Edinburgh, xvi., pp. 379-389, one plate.) 
Tomato Rot. (Amer. Nat., xxi., pp. 380,381.) 
The editor reviews Dr. Arthur’s paper in the Fifth Annual Re- 
port of the U. S. Agricultural Experiment Station. 
Ustilaginee and Uredine—New Species of —J. B. Ellis and B. 
M. Everhart. (Journ. Mycol., iii., pp. 55-57.) 
Eleven new species are described. 
Vegetacion sobre las altas Montanas de Mexico, (The Vegetation of ei 
the high Mountains of Mexico.) WHenry de Saussure. (La 
Naturaleza, vii., pp. 333-349.) 
This very interesting paper is a comparison of the vegetation yo 
on the volcanic cones of Mexico with that on the pe and some > 
very singular conclusions are reached: 
ist.—The forests extend to almost 5,000 feet greater altitude 
in Mexico than on the Alps and end abruptly without straggling 
or dwarfing. The distance between the timber line and the — 
_ limit of perpetual snows in each is about 2,500 feet. 
