162 
of it being obtained from a pound of potatoes. Dr. Richards dis- 
tinguished carefully the coincident but independent escape of a 
slight amount of CO, always given off, even in pure hydrogen; to 
be called “ intermolecular respiration.” 
4. The next paper was a contribution read by title, from Dr. 
Alexander Zahibriickner, of Vienna, a corresponding member of 
the Club, entitled, ** Revisio Lobeliacearum Boliviensium hucusque . 
cognitarum.” The paper, which is in Latin, enumerates all the 
species, giving synonomy and references to the literature, and cites 
collectors and their numbers. There are 39 species, as follows: 
9 in Centropogon, 2 new; 20 in Siphocampylos,7 new; 1 in Lau- 
rentia; 2 in Rhizocephalum; 3 in Hypsela; 4 in Lobelia. The 
paper will be printed in the BULLETIN. 
Index to recent Literature relating to American Botany. 
Arnold, F. Lichenologische Fragmente, 35. Newfoundland. Oéester- 
rich. Bot. Zeitsch. 46: 128-131; 176-182; 213-220; 245-251; 286-— 
292; 326-332; 359-363. 1896. 
Arthur, J.C. The common Ustilago a Maize. Bot. Gaz. 23: 44-40. 
20 Ja. 1897. 
Notes the proper binomial as Usizlago Zeae “(Beckm. ) Unger. 
Backer, J.G. urcraea macrophylla. Hook. Icon. Pl. 26. f/. 2501. 
F. 1897. 
Beal, W. J. Botanic Gardens. Bot. Gaz. 23: 51-53. Ja. 1897. 
Beal, W.J. Mounting plants for use in popular Lectures. Bot. Gaz. 
az: 128. 19 F. 1897. 
Bergen, F. D. Popular American Plant-names—IV. Bot. Gaz. 23: 
473-487. 24 D. 1896. 
Bicknell, E.P. An undescribed Zechea from Maine. Bull. Torr. Bot. 
Club, 24: 86-90. 28 F. 1897. 
Lechea juniperina n. sp. 
Blasdale, W.C. Notes onthe Flora of Humboldt, Trinity and Shasta 
Counties. Erythea, 4: 184-189. 19 D. 1896. 
Trifolium scorpoides n. sp. 
Bonnet, E. Le Haricot (Phaseolus vulgaris L.) était-il connu dans 
-Vancien monde avant la découverte de?l’Amérique. Journ. Bot. 11: 
14-20; 35-39; 48-57; 1 Ja.—1 F. 1897. 
_Briquet, J. Fragmenta monographiae labiatarum. Bull. Herb. Boiss. 
4: 676-696; 762-808 ; 847-878. O.-D. 1896. 
