52 GENETICS [Bot. Absts., Vol. V, 



389. H[arland], S. C. A note on a peculiar type of rogue in Sea-Island cotton. Agric. 

 News [Barbados] 19: 29. 1920. — A distinct type characterized by great reduction in size of all 

 the organs and nearly complete sterility, constitutes about 0.05 per cent of plants in fields of 

 Sea Island cotton in St. Vincent. No viable pollen is produced and seeds are very rarely de- 

 veloped. Plants grown from two seeds borne on a "rogue" plant, representing therefore Fi of 

 cross with Sea Island, had all characters of latter. A self-fertilized strain of Sea Island, which 

 had produced hitherto only normal plants, gave rise in fourth selfed generation to rogue plants 

 in 4 out of 62 progenies, the average percentage of rogues having been 1.6. — T. H. Kearney. 



390. Heribert-Nilsson, H. N. Ett forsok med urval inom pedigreesorter av havre. 

 [An experiment with selection among pedigree-varieties of oats.] 4 V- W. Weibulls Illustrer- 

 ade Arsbok (Landskrona) 15 (1920). 1919.— Of the Danish "Tystofte Gulhvid," by pedigree 

 selection, a new and more productive variety "Weibull's Fortunahavre" was obtained. Here 

 is of special interest that selection within the pedigree variety "Tystofte Gulhvid" has given 

 such a surprisingly good result. This shows that the mother variety "Tystofte Gulhvid," 

 must either not have been homogeneous, although secured by pedigree selection, or the ori- 

 ginal plant of "Fortuna" oats must represent a mutation. Under high humidity combined 

 with high temperature author has observed that the oat flowers are able to open and, contrary 

 to the usual rule, disperse their pollen. Cross-fertilization thus is not excluded in oats, which 

 as a rule however is an autogamous plant. The author also considers as most probable that 

 the individual used as mother plant had its genotype changed by a new combination. — K. V. 

 Ossian Dahlgren. 



391. Hoffmann, Hermann. Geschlechtsbegrenzte Vererbung und manisch-depressives 

 Irresein. [Sex-linked inheritance and manic-depressive insanity.] Zeitschr. ges. Neurol. 

 Psych. 49: 336-356. 1919. — Author reviews suggestion of Lenz that certain diseases repre- 

 sent dominant sex-linked characters and develops the theoretical expectations for this form 

 of heredity. One of the critical requirements in these cases is that a father characterized 

 by a dominant sex-linked trait should produce only normal sons and affected daughters. Lenz 

 mentioned manic-depressive insanity as possible example of this type. Author finds that in 

 general the heredity of the diathesis does conform approximately to theoretical expectations 

 based on Lenz's hypothesis, but there are numerous exceptions. Twelve such exceptional 

 family histories are presented in some detail. In these families where affected men have 

 married presumably normal women there have been produced instead of all normal sons 

 twenty-four affected and two normal, from which it is concluded that manic depressive in- 

 sanity does not present an. entirely satisfactory example of dominant sex-linked heredity. — 

 C. H. Danforth. 



392. Hopkins, L. S. A crested form of the lady fern. Amer. Fern Jour. 9: S6-8S. 

 PI. 4- 1919. 



393. Jehle, R. A., and others. I. Control of cotton wilt. II. Control of cotton anthrac- 

 nose and improvement of cotton. Bull. North Carolina Dept. Agric. 41 l : Supplem. 5-28. Fig. 

 1-6 and 1-5. 1920.— See Bot. Absts. 5, Entry 747. 



394. Jelinek, Dr. Nachste Aufgaben der Pflanzenzuchtung und der Sortenpriifung. 

 [The next problems of plant breeding and variety testing.] Zeitschr. Pflanzenzucht. 7: 83-90. 

 Dec, 1919. 



395. Kajanus, H. B. (1) Weibullsholms Ambrosia-kokart. 1 p. (2) Weibulls Koli- 

 bri-fodervicker. 2 p., 2 fig. (3) Weibulls Tardus-Hundaxing. 2 p., 2 fig. W. Weibulls Illus- 

 trerade Arsbok (Landskrona) 15 (1920). 1919. — New and productive sorts of Pisum sativum, 

 of Vicia saliva, and of Dactylis glomerata are described: the last flowers about two weeks 

 later than the common sorts. — K. V. Ossian Dahlgren. 



