Floristik, Geographie, Systematik etc. 263 



Fritsch, K., Beiträge zur Kenntnis der Gesnerioideae. (Bot. 

 Jahrb. L. p. 392—439. 1913.) 



Verf. hatte früher die Gesneriaceen Brasiliens bearbeitet, 

 er wendet sich jetzt den Gesneriaceen der übrigen Teile Amerikas 

 zu und veröffentlicht zunächst eine Liste der Gesnerioideae dieser 

 Länder. Es sind meist Arten der Andenkette. Folgende 39 Neu- 

 heiten sind darunter: 



Monopyle Sodivoana aus Ecuador, M. angnstifolia aus Peru, 

 Fiebrigia hov. gen. digitalißora aus Bolivia, Koellikeria major aus 

 Bolivia, Heppiella rosea aus Peru, H. parvißora aus Ecuador, H. 

 scandens aus Ecuador, II. Trianae aus Colombia, H. Karsteniana 

 aus Colombia, Seemannia longißora aus Peru, Diastema Eggersia- 

 num aus Ecuador, D. galeopsis aus Bolivia, D. Sodiroamim aus 

 Ecuador, D. villosiim aus Ecuador, D. anisophyllum aus Colombia, 

 nebst var. quitense aus Ecuador, D. affine aus Ecuador, Kohleria 

 (§ Sciadocalyx) violacea aus Colombia. K. spicata (H. B. K.) Oersted 

 var. hispida aus Ecuador, K. (§ Eukohleria Stuebeliana aus Colombia, 

 K. (§ Isoloma) Lehmannii aus Colombia, K. (§ /.) scabrida aus Co- 

 lombia, K. (§ /.) peruviana, nebst var. pallida beide aus Peru, K. 

 {§ /.) lanigera aus Colombia, K. (§ /.) hrachycalyx aus Colombia, 

 K. papulosa (Oersted) Fritsch var, sericea aus Mexico, K. (§ Mous- 

 sonia) reticulata aus Ecuador, K. (§ M.) J amesoniana aus Ecuador, 

 K. (§ M.) Weberbaueri aus Peru, Campanea andina aus Colombia, 

 C, Hansteinii aus Colombia und Ecuador, nebst var. intermedia 

 Colombia, C. urceolata aus Colombia, C. qiiitensis aus Ecuador, C. 

 affinis aus Colombia, Rechsteineria (§ Thamnocaida) Weberbaueri dixx?, 

 Peru, i? (§ Corytholoma) stenantha aus Bolivia, i?. (§ C.) multißora 

 aus Paraguay. W. Herter (Berlin-Steglitz). 



Graves, A. H., The future ofthe Chestnut Tree in North 

 America. (Pop. Sei. Month. LXXXIV. p. 551— 566. 4 figs. June 1914.) 



In this paper is presented an account of the natural ränge of 

 the chestnut Castanea dentata, its probable distribution in geologic 

 times. The natural enemies of the tree, which have curtailed its 

 area in the past, are considered v^^ith reference to the future area 

 of natural growth. A Synopsis is given of the chestnut blight disease, 

 as influencing that distribution, as well, as a description of the in- 

 fluence of coppicing on the vigor of the tree. The author believes 

 that through the breeding of resistant strains lies the hope for the 

 future of the chestnut tree. Harshberger. 



' »^ 



Griggs, R. F., Observations on the behavior of some 

 species on the edges oftheir ränge s. (Bul. Torr. Bot. Club. 

 XLI. p. 25—49. 6 figs. Feb. 1914.) 



The observations recorded in this paper were made in a narrow 

 Strip of country covering the area of maximum out crop of a heavy 

 sandstone stretching from the edge of the terminal moraine, a few 

 miles north of the town of Sugar Grove in Fairfield County, 

 Ohio, southward to the Valley of Queen Creek, east of Bloo- 

 mingville, in Hocking County. It is one of the riebest collecting 

 grounds in the State and the plants, whose distribution terminate 

 here, are not all Alleghonian, but include species of varied geogra- 

 phic affinity. The lists of plants given hy the author show the abun- 

 dance of species on the edge of their ranges, classified as com- 



