TIQUILIA [S: COLDENIA] 
(Richardson, 1976, 1977) 
¢Tiquilia nuttallii (Benth. ex Hook.) A. Richardson [S: Coldenia 
nuttallii Benth. ex Hook.] (Richardson, 1976, 1977), 
p. 1243 
BRASSICACEAE, mustard family 
ALLIARIA 
*¢Alliaria petiolata (M. Bieb.) Cavara & Grande, garlic mustard 
[A. officinalis Andrz.] (Mohlenbrock, 1979; Henderson, 
1980; Nightingale, 1980; Al-Shehbaz, 1988c) 
ALYSSUM, alyssum 
var. alys: 
*¢A. desertorum Stapf (Castaner, 1984b) 
*Alyssum alyssoides (L.) L., pale alyssum (Henderson, 1980) 
ides 
ARABIDOPSIS 
+Arabidopsis thaliana (L.) Heynh., mouse-ear cress, thale cress, 
p. 765 
ARABIS, rock cress 
*A. glabra (L.) Bernh., tower mustard (Mohlenbrock, 1979) 
A. hirsuta (L.) Scop., hairy rock cress, p. 754 
var. adpressipilis (M. Hopk.) Rollins 
. ‘a Pycnocarpa (M. Hopk.) Rollins 
gata (Muhlenb. ex Willd.) Poiret, smooth rock cress, p. 754 
var. laevigata 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
