56 PHANEROGAM I A. 



out by Mr. Brown,* five Peruvian species have been figured by Sir 

 William Hooker ; but in none of them is the position of the embryo 

 shown. I have, therefore, given a figure of the present species, which 

 differs from Hooker's G. pinnatifidus nearly as his G. rlwmboidem 

 does from his G. sinuatus. It is moreover remarkable for the minute 

 size of the silicles, which are even smaller in our specimens than they 

 are delineated in the figure. 



Plate 3, JL. — Cremolobus aphanopterus : a plant of the natural 

 size. Fig. 1. A flower, enlarged. 2. A petal, more enlarged. 3. 

 Stamens and pistil, magnified. 4. The pistil, more magnified, on its 

 long stipe. 5. A ripe silicle, magnified. 6. The same, with one 

 valve detached, and with the contained seed and embryo transversely 

 divided; the other valve longitudinally divided in place. 7. A seed, 

 magnified. 



2. Cremolobus pinnatifidus, Hook. 



G. annum, pusillus, subglaber; foliis pinnatifidis vel incisis spathidato- 

 oblongis; racemis laxis nunc elongatis; siliculce vdlvis orbicularis ala 

 lata sinuata seu integriuscula cinctis stipite gracili longioribus j stylo 

 e basi crassa subulato. 



Cremolobus pinnatifidus , Hook. Ic. PI. t. 100. 



Var. p. integrifolius : foliis indivisis aut obsolete dentatis aut integer- 

 rimis; racemo brem. 



Hab. Andes of Peru, near Obrajillo and Banos. (3. At Banos. 



A small, slender annual, a span or less in height, nearly glabrous, 

 but showing some hairiness on a close inspection, as in the last species. 

 Leaves incisely pinnatifid, as represented in Hooker's figure, or some- 

 times almost pinnately parted as in C. aphanopterus; or, in var. (3. 

 entire or nearly entire, and oblong or spatulate. The latter is perhaps 

 a depauperate state, from one to 3 inches high ; but its flowers are as 



* Observations on the Structure and Affinities of the more remarkable Plants col- 

 lected by Oudney, Denham, & Clapper ton, &c, p. 7. 



