324 



CALIFORNIA.— SUPPLEMENT. 



t [Cruciferce. 



siliculis glaberrimis orbicularibus compressis reticulatis emarginato-bilobis lobis sub- 

 divaricatis acutis, stigmate sessili. — Torr. et Gr. Fl. 1. p. 116. 



A much branched and spreading annual, with long slender racemes of fruit, and recurved compressed 

 pedicels. The pouch is very similar in form to that of Lepidium bipinnatifidum, but broader at the base, 

 and with the lobes longer and slightly diverging. The leaves and general aspect of the plant are very differ- 

 ent in the two. 



4. L. leiocarpum ; glabriusculum, caulibus procumbentibus, foliis pinnatifidis, fructus 

 racemis laxis, pedicellis latis planis paten ti-reflexis, siliculis glaberrimis nitidis orbicu- 

 laribus compresso-planis marginibus subincurvis apice emarginatis, stigmate sessili. 



Habit of the preceding, but less slender. The leaves are more pinnatifid ; the pedicels broader and flatter ; 

 the siliculae rather larger, very glossy, destitute of reticulation ; the margin a little curved upwards ; the apex 

 with only a minute notch. 



1. Thysanocarpus elegans {Fisch. et Mey.) ; calyce petalis vix duplo breviori, siliculis 

 orbiculari-ovalibus membranaceo-alatis alis foraminibus plurimis pertusis apice emar- 

 ginatis, stylo exserto sinus duplo superante. — a. siliculis glabris. — T. elegans. Fisch. et 

 Mey. in Intl. Sem.f Hort. Petrop. p. 51. Torr. et Gr. Fl. I. p. 118. — |S. siliculae disco 

 tomentoso. 



A most beautiful species, very different from the original T. curvipes. Our specimens have all a woolly 

 disk to the siliculte, in which particular alone it differs from T. elegans, Fischer et Meyer, and is probably 

 the same as the same authors notice from California, as discovered by M. Deppe, differing only in the longer 

 style. The present variety is H to 2 feet high, lower leaves slightly pinnatifid and hairy, upper ones glabrous, 

 entire, sagittate at the base, racemes of fruit 8-10 inches long. Siliculae of a most elegant structure, margined 

 with a broad somewhat crenated wing, in which is a range of rather large oblong perforations all round the 

 woolly disk. 



2. T. curvipes. Hook. Fl. Bor. Am. v. 1. p. 69. t. 18. /. A. Torr. et Gr. Fl. 1. p. 118. 

 — £>. siliculae disco pubescente. 



The var. /3. alone is in this collection, differing in no respect from the original X. curvipes, except in the 

 downy fruit. 



3. T. pidchellus. Fisch. et Mey. Ind. Sem. Hort. Petrop. 1835. p. 50. Torr. et Gr. Fl. 

 1. p. 118 — a. silicula nuda. — j3. siliculae disco tomentoso. 



These two states of the plant are mixed together, as if gathered in the same locality, and I see no reason 

 to consider them other than varieties of the same species. The species is chiefly distinguished from T. cur- 

 vipes by the much longer style, and the scarcely notched apex of the silicula. 



4. T.pusillus; pubescenti-hirtus ramosus, siliculis orbicularibus vix alatis pilis patentibus 

 uncinatis utrinque tectis, floribus apetalis. Hook. Ic. PI. 1. t. 43. Torr. et Gr. Fl. 1. 

 p. 119. 



A very minute plant. The flowering specimens probably do not equal an inch in height, but the inflorescence 

 runs out into slender racemes, 3 or 4 inches long, bearing siliculae to the very base. These are scarcely so 

 large as flax-seed, orbicular, compressed, and not distinctly winged, but clothed all over with spreading uncinate 

 white hairs. 



