Dichotomous table for gallers on Adoxa moschatellina
by Hans Roskam
1a Bulging or expanded thickenings caused by smut- or rust fungi => 2
1b Above ground organs often with many small, glass pearl-like, mainly 1-celled wart-shaped galls. Synchytrium anomalum
2a Malformations caused by fungi fruiting at gall surface => 3
2b Bulges on shoot parts above or below ground, containing black smut spores. Melanotaenium adoxae
3a Malformation covered with aecia => 4
3b The fungus develops only dark brown sori with 2-celled telia. Puccinia adoxae
4a Aecia on leaf underside rather uniformly distributed or on petioles and stems loosely distributed on ± thickened pads. Puccinia argentata
4b Aecia, as in previous rust; uniformly distributed, more dense or loose, usually over large areas and soon systemically infected, pale plants. Puccinia albescens