Cruaferce.] 



CALIFORNIA.— SUPPLEMENT. 



321 



Jonga. Petala clausa, omnia spathulata versus apicem dorso insigniter concavo-carinata : 2 exterioribus basi 

 vix gibbosis : 2 interioribus apice unitis, dorso per totam fere longitudinem lato-alatis, ala undulata protrusa. 

 Stamina diadelpha, singula phalanx e filamentis tribus, leniter coadunatis, apicibus liberis. Antherce lineares. 

 Germen lineare in stylo longo attenuatum. Stigma magnum, marginibus deflexis undulatis apice truncato. 



Tab. LXXIII. Dielytra chrysantha. Fig. 1. Flower; fig. 2. Inner petals ; fig. 3. Stamens and pistil. 



Ord. V. CRUCIFER^. Juss. 



I. Turritis? lasiophylla; simplex elongata stricta inferne pilis simplicibus rigidis hispida 

 superne glabriuscula, foliis oblongo-lanceolatis pinnatifidis petiolatis supremis linearibus 

 integerrimis basi attenuates, calycibus subpilosis petalis, linearibus (flavis) unguiculatis, 

 siliquis (immaturis) longis angusto-linearibus strictis arete deflexis. 



A very distinct species, lj foot to 2 feet high, very straight, unbranched ; lower leaves on long petioles, 

 pinnatifid with sharp unequally sized teeth. Petals yellow, linear, about half as long again as the calyx. 

 Young pods very narrow, not in the least curved, deflexed. 



1. Arabis blepharophylla ; foliis utrinque nudis marginibus pilis albis rigidissimis sim- 

 plicibus vel furcatis ciliatis, radicalibus obovato-spathulatis caulinis oblongis sessilibus, 

 calyci foliolis ellipticis obtusis superne stellato-pubescentibus, petalis obovatis in unguam 

 attenuatis (purpureis). 



A small plant, three or four inches high, with a perennial root. Stem simple. Radical leaves several, 

 spreading, an inch or more long, naked on both sides, those of the stem hispid on the costa beneath ; all of 

 them margined with white, singularly rigid, simple or forked hairs. Calyx membranaceous, slightly coloured, 

 and scariose at the margin, half of the length of the petals, which appear to be purplish. 



1. Pachypodium integrifolium ; glaberrimum, foliis lineari-lanceolatis integerrimis sub- 

 glaucis, floribus fructibusque dense corymbosis, siliquis angusto-linearibus teretibus toru- 

 losis, stylo brevi, stigmate parvo capitato. (Tab. LXXIV.) — Nutt. in Ton: et Gr. 1. 

 p. 96. 



Hab. Snake Country. Blackfoot River. (Tolmie.) — Of the genus of this we are very doubtful, the fruit 

 not being ripe, though the siliquse seem fully formed. But these siliquse are quite terete (the valves being con- 

 cave), singularly torulose or moniliform, and there is a great disposition (when saturated with moisture) in their 

 valves, not in the rest of the seed-vessel, to break at the joints. The root is perennial ; from the summit 

 of which arise one or more stems 12-14 inches high, branched at the base, and above also bearing many short 

 leafy branches, each terminated by a dense corymb of pale purple flowers. Calyx glabrous, membranous. 

 Petals obovato-lanceolate, with long claws. The fruit likewise forms corymbs, about an inch long, slightly 

 curved upwards. Seeds in a single row, oblongo-ovate, minutely dotted. Embryo unformed in our specimen.* 



Tab. LXXIV. Fig. 1. Flower ; f. 2. Siliqua with the valves separated ; f. 3. Unripe seed : — magnified. 



* After the above had been printed under the name of Cardamine ? torulosa, Hook, et Arn., authentic specimens in 

 Dr Boott's Herbarium have proved to us that this is the Pachypodium integrifolium, 1. c. The genus is founded upon 

 Macropodium laciniatum, Hook. Bot. Misc. 1. p. 341. t. 68. (which has much compressed pods) ; and is separated 

 by Mr Nuttall from Macropodium (Br.) on account of the incumbent cotyledons and narrower siliquse, with shorter 

 stipes. The present plant has the siliqua; perfectly terete and torulose, and scarcely differs from Cardamine or 

 Arabis, except in the direction of the radicle, which indeed, though dorsal in its origin, is applied obliquely to the 

 cotyledons. 



2 s 



