68 



I334)> which was unknown to me, although I had a specimen of 

 the same species collected by Miss M. Stevens, also in Paget, 

 in the spring of 1913 (No. 69), not taken up, however, in my 

 "Flora of Bermuda" published in 1918. 



Professor Whetzel's specimen renewed my interest in the 

 plant and I called on Mr. N. E. Brown of Kew for aid in its 

 identification; he tells me it is Sisymbrium erysimoides Desf., a 

 species of southern Europe. Holding, as I do, that Sisymbrium 

 Nasturtium-aquaficum L., Water Cress, is the type of the genus 

 Sisymbrium, I transfer the species under consideration to the 

 genus Norta as Norta erysimoides (Desf.) Britton. 



The plant is annual, glabrous, erect, little-branched, 3-5 dm. 

 high. The leaves are thin, glabrous, lyrate-pinnatifid, slender- 

 petioled, 3-10 cm. long, the teeth and lobes acute; the small 

 white flowers are in long slender racemes, the short pedicels 

 pubescent on the upper side; the siliques are very slender, 

 spreading, glabrous, 3-3.5 cm. long, the seeds oblong. 



N. L. Britton. 



White-flow^ered Primula angustifolia. — ^About 20 years 

 ago a white-flowered variety (var. of form Helencs Pollard and 

 Cockerell) of Primula angustifolia was described from New 

 Mexico. Last year this form was rediscovered by Mr. D. M. 

 Andrews on Arapahoe Peak, Boulder County, Colorado. Thanks 

 to Mr. Andrews, we now have it growing in the garden at Boulder, 

 where it flowers at the beginning of May. Even at an altitude 

 of about 5,500 ft., the flowers of timber-line can be grown success- 

 fully on the north side of the house, where they are shaded from 

 the direct rays of the sun. If this were better known, many 

 people might have "timber-line gardens," with the small bril- 

 liantly flowered plants of high altitudes, more attractive because 

 blossoming early in the season. — T. D. A. Cockerell. 



