96 CRUCIFER^. Pachypodium. 



8. E. grandiftoimm (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 ; flow- 

 ers in capitate corymbs ; siliques very long, somewhat torulose ; stigma con- 

 spicuously 2-lobed. . , • • • r- n/r TT r^ ve ■ 



" Sand hills of Pomt Pmus, m the vicinity of Monterey, Upper Cabtornia. 



jyiarch. 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 whol- 

 ly entire sometimes repandly denticulate, softietimes angularly lobed below; 

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

 into a slender petiole 1-2 inches long. Corymb scarcely extending beyond 

 the leaves. Flowers fragrant, 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 pubescent." Nutt. 



16. PACHYPODIUM. Niott. mss. 



" Silique somewhat terete, elongated, torulose, on a short thick stipe. 

 Seeds in a single series, oblong, scarcely margined. Cotyledons obhquely 

 incumbent. Calyx nearly erect, equal at the base. Glands 4 at the base of 

 the stamens. Petals narrow, on very long claws.— Annual or biennial, gene- 

 rally tall plants, with the siliques crowded and almost corymbose. Flowers 

 pale violet or rose-color. Leaves entire or laciniate." 



1. P. laciniatum (Nutt. \ mss.): glabrous ; leaves all petioled, laciniate- 

 piniiatifid ; flowers on spreading pedicels ; petals hnear, 3 times as long as the 

 calyx • stipe very short ; siliques tapering at the summit.— Macropodiura la- 

 ciniatum. Hook. ! hot. misc. 1. p. 341. t. 68, ^ fl. Bor.-Am. 1. jx 43. 



Rocky places beneath cliiFs on the Wallawallah and Oregon Rivers, 

 Douo-las ! NuttalU— Stem erect, 1-3 feet high, branching. Leaves atten- 

 uated into a netiole ; lacinise spreading, entire or toothed. Raceme strict, 

 dense : pedicels about 2 lines long. Sepals oblong. Petals very narrow, 

 pale red or almost white. Anthers hnear. Siliques an inch and a half 

 long slender, much crowded at the summit of the peduncles, tapering into 

 a slender style : stigma small, simple : stipe less than a line in length. Radi- 

 cle lying near the edge of one of the cotyledons^ but truly incumbent.— Very 

 distincrfrom Macropodium in the very short stipe of the silique, and in the 

 incumbent cotyledons. 



2. P. integrifolium (Nutt. ! mss.) : " leaves entire ; radical ones petioled, 

 oblong-elliptical; cauline lanceolate-oblong, sessile; uppermost nearly hnear ; 

 stem fastigiately branched ; flowers ahnost corymbose, crowded ; petals spat- 

 ulate-obovate ; pedicels twice as long as the calyx ; stipe short, but dis- 

 tinct ; silique abruptly pointed. , , ^ r 



" Elevated plains of the Rocky Mountains, towards the Oregon, as tar as 

 Wallawallah.— (2) Stem terete, smooth, 3-5-feet high, attenuated upward, 

 and sending out numerous branches toward the suimnit. Flowers pale rose- 

 color. Pedicels about ,half an inch long, almost horizontal. Sepals mem- 

 branaceous, oblong. Stamens exserted. Claws of the petals extending be- 

 yond the calyx. Siliques an inch in length, contracted between the seeds, 

 nearly terete ; the stipe nearly a Une long." Nutt.— Seeds as broad as the 

 cell ; the radicle dorsal, lying midway between the middle and the edge of 

 one of the cotyledons. Septum with a broad longitudinal nerve. 



