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330
ARTUR HÅKANSSON
2) the parent species belong lo
different sections
Whitneyi X deflexa..........................10 I
Whitney i X Bottae............................16 1
Whitneyi, 4n X deflexa....................7 II + 9 I
Whitneyi, 4n X Bottae ....................7 II + 9 I
nutans X hispidula (n = 7) ............0—2 11 + 21-
-17 I
nine of the I’s are small.
the I’s are small.
the pairing is rather variable,
Iiis ma v occur.
Literature cited.
1) Hiorth, G. 1941. Zur Genetik und Systematik der Gattung Godetia. — Zeitschr.
f. Vererbungslehre 79.
2) Håkansson, A. 1940. Die Meiosis bei haploiden Pflanzen von Godetia Whitneyi.
— Hereditas XXVI.
3) — 1941 a. Zur Zytologie von Godetia-Arten und -Bastarden. — Hereditas
XXVII.
4) — 1941 b. Zytologisehe Beobachtungen an Kreuzungen zwischen Godetia de-
flexa und G. Whitneyi. – Botan. Notiser för år 1941.
5) — 1942. Zytologisehe Studien an Rassen und Rassenbastarden von Godetia
Whitneyi und verwandten Arten. — Lunds univ. Årsskrift N.F. Avd. 2.
Bd. 38. Nr. 5.
6) — 1943 a. Die Meiosis einiger Got/efr’a-Bastarde. — Botan. Notiser för år 1943.
7) — 1943 b. Meiosis in a hybrid with one set of large and one set of small
chromosomes. — Hereditas XXIX.
8) — 1946. Meiosis in hybrid nullisornics and certain other forms of Godetia
Whitneyi. Hereditas XXXII
9) Ivanov, M. A. 1938. Experimental produetion of haploids in Xicotiana rustiea.
— Genetica 20.
10) Johnsson, H. 1944. Meiotic aberrations and sterility in Alopecurus myosuroides
IIuds. — Hereditas XXX.
11) Kagawa, F. 1939. The effect of abnormal temperature of the course of pollen
formation in the genus hybrid Tritieum compactum X Seeale cereale. —
Japanese Journ. of Botany. X.
12) Levan, A. 1940. The cytology of Allium amplectens and the occurrence in nature
of its asynapsis. — Hereditas XXVI.
13) Meurman, (). 1928. Gytological studies in the genus Ribes I.. — Hereditas XI.
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