H. Taxon: 10 



other knovm species of Heterodera . 



H. gOttingiana . Type host, garden peas ( Pisvnn sativvim L.). Also other 

 Leg-uminosae, but according to Oostenbrink (1951), this species does not 

 attack beans ( Phaseolus vulgaris L.)} clover ( Trifolium spp.)j alfalfa 

 ( Medicago sativa L.), or soybeans (Soya max Piper) . 



H. trifolii. T:fpe host, red clover ( Trifolium pratense L.)- Also other 

 Leguminosae, including beans ( Phaseolus vulgaris L.), but not peas ( Pisum 

 sativTjn L.), alfalfa, or soybenas. (Oostenbrink, 19^1). 



H. glycines . Type host, soybean ( Glycine max L.). Also snap bean ( Phas - 

 eolus vulgaris L.), Adzuki Bean (P. annularis ), vetch ( Vicia sp.). Annual 

 lespedeza ( Lespedeza stipulacea Maxim.), Henbit ( Lamium sp. ) . 



H. major . Type host, oats ( Avena sativa L.). Also other Gramineae 

 TOostenbrink, 1950) . 



H. cruciferae . Type host, cabbage ( Brassica oleracea L.). Also other 

 Cruciferae. 



H. carotae . Type host, carrot ( Daucus carotae L.). Wild carrot (Daucus 

 carotae ) is the only other known host (Jones, 1950b). 



H. himmli. Type host, hops ( Humulus lupulus L.). Also other Urticaceae. 



H. galeopsidis. Type host, hemp nettle ( Galeopsis tetrahit L.). Also 

 other Labiatae and some species of Chenopodiaceae and Carophyllaceae 

 (Jones, 1950b). 



H. fici . Type host, rubber plant ( Ficus sp.) 



H. weissi . Type host, knotweed ( Polygonum pensylvanicum L.). No other 

 hosts known. 



H. cacti . Type host, Phyllocactus ( Epiphyllum ackermanni ). Also other 

 Cactaceae. 



H. rostochiensis . Type host, potato ( S planum tuberosum L.). Also tomato 

 ^ycopersicon esculentum Mill.) and a few other species of Solanaceae 

 (Oostenbrink, 1950), but not tobacco ( Nicotiana tabacum L.) (Taylor, 1952), 



H. tabacum . Type host, tobacco ( Nicotiana tabac\im L.) and tomato. 



H. punctata . Type host, wheat ( Triticum vulgare Vill.). Also other 

 Gramineae. 



Species of other plant families than those mentioned above have been 

 reported as infected by nematodes of the genus Heterodera . Some of these 

 may be attacked by known species, but it is highly probable that others 

 are attacked by species as yet undescribed. Among these should be men- 

 tioned the species found attacking sea marram grass (Ammophila arenaria 



