854 



SCROPHULARIACEAE 



Aureolaria 



7604B. AUREOLARIA Raf. 



Stems glabrous and more or less glaucous; capsules glabrous. 



Calyx lobes 2-5 mm long; corollas 35-40 mm long 1. A. flava var. typica. 



Calyx lobes 5-14 mm long; corollas 35-60 mm long la. A. flava var. macrantha. 



Stems more or less puberulent or pubescent, at least above the base, some with glandu- 

 lar hairs also; capsules more or less pubescent. 

 Pubescence glandless; perennials. 



Capsule pubescent at maturity, 12-15 mm long; pedicels 1.5-3 mm long; corollas 



30-35 mm long; flowering in July 2. A. virginica. 



Capsule glabrous, 15-23 mm long; pedicels 3-25 mm long; corollas mostly 45-55 



long; flowering in August 3. A. grandiflora var. pulchra. 



Pubescence more or less glandular. 



Upper part of stems closely pubescent, not at all or only slightly glandular; 

 leaves puberulent, scarcely or not glandular; capsules narrowly ellipsoid, 



usually 9-11 mm long 4. A. pedicularia var. typica. 



Upper part of stems glandular-pubescent to hirsute; leaves glandular-puberulent 

 to pubescent; capsules ellipsoid to broadly ellipsoid, usually 11-15 mm long. 

 Glands scattered through the pubescence of the upper portions of the stems; 



capsules mostly 11-12 mm long 4a. A. pedicularia var. intercedens. 



Glands crowded in the pubescence of the upper portions of the stems; capsules 

 mostly 11-15 mm long 4b. A. pedicularia var. ambigens. 



1. Aureolaria flava (L.) Farw. var. typica Pennell. (Gerardia virginica 

 in part, of Gray, Man., ed. 7 and Dasystoma virginica in part, of Britton 

 and Brown, Illus. Flora, ed. 2.) Smooth False Foxglove. Map 1862. 

 Infrequent to frequent in the lake area, less frequent in the unglaciated 

 area, and probably local or absent in the intervening area. It prefers very 

 sandy soil but is found also in clayey soil. This plant, as well as the next 

 two, are supposed to be parasitic on the roots of species of the white oak 

 group of oaks and are found on slopes and ridges wooded with these oaks. 



Maine to Wis., southw. to Ala. 



la. Aureolaria flava var. macrantha Pennell. (Gerardia virginica in 

 part, of Gray, Man., ed. 7 and Dasystoma virginica in part, of Britton and 

 Brown, Illus. Flora, ed. 2.) Smooth False Foxglove. Map 1863. This 

 variety is rare in the northern part of the state, becoming somewhat fre- 



