Sempervivum, houseleek

fam. Crassulaceae

1a long, crossing corridors in several leaves; leaves turn brown: Cheilosia caerulescens

1b galls, etc. => 100

100a Nematoda => 101

100b Acari => 102

100c Coleoptera => 103

100e Diptera => 104

100f Hemiptera => 105

100d Hymenoptera => 106

100g rust fungi => 107

100h smut fungi => 108

100i powdery and downy mildews => 109

100j other causers => 110

107 – rust fungi

107a Pucciniaceae: Endophyllum sempervivi

109 – powdery and downy mildews

109a Erysiphaceae: Golovinomyces orontii

Not included in the key: Aizobius sedi; Cnephasia longana.

18/10/2015