A STUDY OF ERYSIMUM GRANDIFEORUM NUTT. AND 

 THE SPECIES AGGREGATED UNDER IT. 



ALICE EASTWOOD. 



This species as described in the Synoptical Flora, Vol. I, pt. i 

 p. 144, is an aggregate representing either several species or sub- 

 species. The attention of the writer has been called to the mat- 

 ter by the rediscovery of the type on "Sand hills of Point Pinos, 

 in the vicinity of Monterey." This differs so much from the form 

 included under the same name found near San Francisco and 

 from a species collected at Mendocino by H. E. Brown, and dis- 

 tributed as No. 708 of his collection, that the writer has felt it 

 necessary to segregate these different species from the type form. 

 Nuttall's description of the type is so full and fits the specimens 

 at hand so perfectly that it seems advisable to repeat it here. 



E. giandiflorum (Nutt. ! mss. ): "dwarfish, slightly roughened 

 with appressed, forked or stellate hairs ; leaves oblong-spatulate, 

 obtuse, entire or somewhat angularly lobed towards the base ; 

 petioles long and slender ; flowers in capitate corymbs ; siliques 

 very long, somewhat torulose ; stigma conspicuously 2-lobed. 



"Sand hills of Point Pinos, in the vicinity of Monterey, Upper 

 California, March. — Root very long and straight, perennial. 

 Stems growing partly under the sand, crowned with the vestiges of 

 several years' growth of leaves ; the part above ground 3 to 6 

 inches in height. Leaves very flat, often wholly entire, some- 

 times repandly denticulate, sometimes angularly lobed below ; 

 lamina an inch or more in length and 5-6 lines broad, at- 

 tenuated at the base into a slender petiole 1-2 inches long. 

 Corymb scarcely extending beyond the leaves. Flowers fra- 

 grant, deep yellow, uncommonly large. Inner sepals saccate at 

 the base. Petals with the claws exserted. Filaments very broad, 

 flat. Siliques 2-3 inches long, somewhat curved upwards and 

 outwards, scarcely a line wide. Style scarcely any ; stigma pu- 

 bescent." Nutt. (Torr. dt Gray, Fl. N. Am. I. 96.) 



Nuttall's specimens were collected earlier in the season 

 than those of the writer, which were collected April 15, 1900 



