466 



re or rarely toothed ■-■■ ;'.'.ow. I2-2C mm. high and nearly as 



fruit; pods linear, rough. 5-^ cm. 



te short thick. Dry rins, Ark. to Minn., 



N. W. Terr. M.i} 



5. Erysimum Arkansanum Nurt. Yellow Phlox. Taller and greener 



than the preceding, 0-10 dm. high, with a more leafy and branched stem, slightly 



strigose with branched hairs; flora 5 mm. high ; pod linear, tapering at the 



summit, about I dm. long. Open places, Ohio and 111. to Tex. May-June. 



35. ALYSSUM L. 



Low with small racemose yellow or yellowish flowers, 



Tilaniv.: ated and toothed or appendaged. SilicL 



oblong or orbicular, compr. the septum thin. Stigma 



r.tire. Sc .-.unbent [Greek. 



: :o species, nati-. or Id. 



: Aiyssum alyssoides in. Yellow ok Small Alyssum. (t F. 



: :- - tufted. 0.7-2.5 dm. high. Leaves iinear- 



: 6-5 cm. long: :'. 

 2 mm. broad ; pedicels 4 mm. lung in fruit; pods orbicular. 3 mm. i 



inutely pubescent notched, tipped with the mi sepals per- 



around the ich cell. In fields. Ont to N. H.. 



N. Y.. N. J • and in ballast about the seaports. Also in the Far West 



Xat c 1 e from Europe. Summer. [.-'. . L.] 



KONIGA Adans. 



Perennial herbs or shrubs, pu: ::h forked hairs, with entire 



and small whitr :.tire. Fiia- 



ihed. but Silick com- 



.. or orbicu S s 1 in each cell. :s accumbent [Name 



in honor of Cha: rator of the British Museum.] About 4 species, 



g on. 

 1. K R I " Sweet A; ; niga. 



: — :.: r isce ling 1-5 dm. higL. pubescent. 



Stem-It . r linear. 1-5 cm. long ; basal leaves oblan- 



about 4 mm. broad; pec: 

 8 mm. Long glabrous, pointed, 2-5 mm. long; calyx deciduo 



places xcaskmal. Escaped from gardens, 

 pe. Summer. :mum L.~\ 



37. BERTEROA DC. 



Herbs, pubescent or canes rs. the leaves mostly narrow and 



entire, and the fl ernes. Petals 2-cleft. Fila- 



: -toothed at the base. S ong or subglobose. little compressed. Seeds 



.;h cell; c I [In honor of C. G. Bertero. a botanist 



1. Berteroa incana L. PC." Hoary I. F. £ - ct or 



ascend ubescent Leaves lanceolate or oblong. 1-4 cm. 



fly undulate: flowen : mm. broad: pedicels 



4-6 ? m- ood pubescent oblong. 6-8 mn. ral-seeded; 



Me. to Ont.. Minn.. N. J., a- 

 1 Europe. Racemes elongating, the I p.ds very 



num-.r ' L.] 



HESPERIS L. 



Erect per nubescent hrs, with simple 



rect lobes. 



Silique- tne **&* '■ 1 -nerved. 



n I row in each c- Ledons incumbent. [Name 



.:.:.] About 20 species, 



