18 Botanisches Centralblatt. 



Guignard, L. 1915. Nouvelles observations sur la formation du pollen chez: 



certaines Monocotyledones. (C. R. Ac. Sc. Paris. CLXI. p. 623—625.) 

 Guttenberg, A. von 1915. Die Formausbildung der Baumstämme. 



(Oesterr. Vierteljahrschr. Forstw. N. F. XXXIII. p. 217—262. 32 F.) 

 Herzfeld, S. 1915. Ueber die weibliche Koniferenblüte. (Verh. k. k, 



zool.-bot. Ges. Wien. LXV. p. 225—232. der Sitzber.) 

 Jesson, E. M. 1915. On the hairs of the tomentum and ovary in 



Rhododendron falconeri, Hook. f.. and Rh. Hodgsoni, Hook. L 



(Ann. of Bot. XXIX. p. 635-638. 1 f.) 

 Kraus, E. J. 1915. Germinating pollen. (Science. N. S. XLII. p. 610—611.) 



[Brief description of method used in testing viability. — Trelease.j 

 Palm, Bj. 1915. Studien über Konstruktionst5'pen und Entwicklungs- 

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Sto^ckholm, 1915.) 

 Parish, S. ß. 1915. Teratology of the navel orange. (Bull. S. California. 



Ac. Sc. 1915. p. 46—48.) 

 Prankerd, T. L. 1915. Notes on the occurrence of multinucleate cells. 



(Ann. of Bot. XXIX. p. 599-604. 8 f.) 

 Spratt, E. R. 1915. The root nodules of the Cycadaceae. (Ann. of Bot, 



XXIX. p. 619-626. 1 pl.) 

 Woolery, R. 1915. Meiotic divisions in the microspore mother-cells 



of Smilacina racemosa (L.), Desf. (Ann. of Bot. XXIX. p. 471—482. 



1 pl. 1 f.) 



V. Tarietäten, Desceudenz, Hybriden« 



Belling, J. 1915. Linkage and semi-sterility. (Amer. Nat. XLIX, 



p. 582—584.) 

 Blomqvist, S. G. son 1914. Verbascum-Hybrider särskildt V. longifolium 



Ten. X speciosum Schrad. Meddelad den 13 Januari 1909 af V. B. 



Wittrock och A. G. Nathorst. (Acta Horti Bergiani. V. p. 3—10. 6 f.) 

 Coulter, J. M. 1915. Evolution, heredity and eugenics. (Bloomington^ 



111., School Science Series Nr. 5. 1915.) 

 Damm, 0. 1916. Chemische Forschung und Darwinismus. (Die Natur. 



1916. p. 72-73.) 

 Daniel, L. 1913. Nouvelles recherches sur les greffes herbacees. 



(Rennes. 1913. 100 pp. 54 pl.) 

 Davis, B. M. 1915. Additional evidence of mutation in Oenothera. 



(Amer. Nat. XLIX. p. 702-706.) 

 Davis, B. M. 1915. The test of a pure species of Oenothera. (Proc- 



amer. philos. Soc. LIV. p. 226—245.) 

 East, E. M. 1915. An interpretation of sterility in certain plants. 



(Proc. amer. philos. Soc. LIII. p, 70—72.) 

 East, E. M. 1915. The chromosome view of heredity and its meaning 



lo plant breeders. (Amer. Nat. IL. p. 457 — 494.) 

 East, E. M. 1915. The phenomenon of seif sterility. (Amer. Nat. 



XLIX. p. 712.) [Correction of p. 79, Vol. XLIX, Amer. Nat.] 

 Emerson, R. A. 1915. Anomalous endosperm development in maize 



and the problem of bud sports. (Zschr. ind. Abst.- u. Vererb.- 



Lehre. XIV. p. 241—259.) 

 Frimmel, F. von 1915. Verbascum Liechtensteinensis, eine neue 



Verbascumform. (Zschr. ind. Abst.- u. Vererb.-Lehre. XIV. p. 



281—285. 3 A.) 

 Howard, A. and G. L. C. 1915. On the inheritance of some characters 



in wheat. II. (Mem. Dep. Agr. India. Bot. Ser. VII. p. 273-285. 8 pl.) 

 Ikeno, S. 1915. A propos d'un tvpe nouveau des plantes variees 



nonmendöliennes. (Bot. Mag. Tokyo. XXIX. p. 216-221. 1 f.) 



