Umbdlifera.] CALIFORNIA.— SUPPLEMENT. 347 



1. Heuchera hispida; scapo nudo petiolisque hirsuto-pilosis, foliis cordatis rotundato- 

 lobatis crenatis utrinque parce pilosis, panicula elongata angusta laxa, calycibus aequali- 

 bus undique longe et canescenti-hispidis, petalis lineari-oblongis pusillis fugacibus, 

 staminibus 5 vix exsertis, stylis brevibus ! 



The filaments are not longer than the lobes of the calyx. It appears to be a very distinct species, ap- 

 proaching, in the short stamens, to H. cylindrica. Dough, but with a totally different habit. The short 

 styles are slightly at variance with the generic character usually given, but in H. cylindrica they are almost 

 as short. In H. cylindrica no petals have been observed, here they are extremely caducous, so much so as 

 not to be found soon after the flower-buds expand. It is therefore probable, that they may be also present 

 in younger specimens than we have seen of H. cylindrica, and that the two species may form a sub-genus 

 of Heuchera, distinguished by the fugitive] petals, short thickish styles, and short filaments. 



Ord. XXVI. UMBELLIFER^E. Juss. 

 1. Hydrocotyle natans. Cyrill. 

 1 . Bowlesia lobata. Ruiz et Pav. 



1. Sanicula arctopoides. Hook, et Am. supra, p. 141. 



2. S. nudicaulis; caulescens, foliis prajcipue radicalibus longissime petiolatis cordatis 

 3-partitis segmentis lato-obovatis sublobatis setoso-dentatis lateralibus bifidis caulinis 

 consimilibus duobus oppositis ad umbellae triradiatee basin, calycis tubo echinato. 



3. S. Menziesii. Hook, et Am. supra, p. 142. 



4. S. laciniata; caulescens, foliis petiolatis circumscriptione cordatis profunde 5-partitis, 

 segmentis laciniato-pinnatifidis, laciniis angustis setoso-acuminatis, umbellis compositis, 

 involucris involucellisque bipinnatifide laciniatis. 



This is most allied to <S. Menziesii, but differs in the much more deeply divided leaves. 



5. S. bipinnata ; caulescens, foliis longe petiolatis bipinnatis, pinnis remotis, pinnulis 

 anguste-obovatis basi cuneatis inciso-dentatis dentibus mucronatis, umbella subcomposita, 

 involucri foliolis profunde trifidis, laciniis pinnatifide laciniatis, calycis tubo basi nudo 

 versus apicem echinato. 



In the divided leaves, this approaches to <S. graveolens, but is, in fact, a very different species. 



1. Zizia cordata. Koch De Cand. Prod. 4. p. 100. 



Hab. Green River of the Snake Country. Mr Tolmie. 



1. Leptocaulis inermis. Nutt. 



The fruit of this is nigulose, or very slightly tuberculate, but is much broader than in the other species of 

 the genus. 



1. Helosciadium leptophyllum. DC. — var.f latifolium. 

 The specimens are only in young fruit, and the segmenti of the upper leaves are considerably broader than 



