166 



CRUCIFERjE. X. ARABIS. XL OUDNEYA. XII. MACROPODIUM. 



Hill Wall-Cress. Fl. June, July. Clt. 1823. PL to | foot. 

 f Species not sufficiently known. 



57 A. STELLE'RI (D. C. syst. 2. p. 242.) plant hispid with 2- 

 forked hairs ; lower leaves oblong- spatulate, upper ones half- 

 stem-clasping, oblong, toothed ; racemes corymbose ; petals cu- 

 neated, oblong. "If. . H. Native of Kamtschatka. A. pendula, 

 Steller in herb. Pall, not Lin. Petals white, twice the length of 

 calyx. A. Kamtschatica, Willd. herb. 



Steller's Wall-Cress. PI. \ foot. 



58 A. LU'CIDA (Lin. fil. suppl. 298.) leaves shining, clasping 

 the stem. Tf.. H. Native of Pannonia. Petals white, linear, 

 entire, narrowed at the base, twice as long as the calyx. This 

 plant comes very near to A. cihata var. glabra. 



Shining-leaved Wall-Cress. Fl. Ju. July. Clt. 1790. PI. 4 ft. 



59 A. RE'PTANS (Lam. diet. 1. p. 222.) leaves roundish, 

 quite entire, hairy ; runners reptant. If. . H. Native of sandy 

 fields, from Pennsylvania to Virginia. Pluk. aim. 281. t. 51. f. 5. 

 Habit of Hiero.ci.um auricula. Flowers- small. Pods small, 

 erect. 



Reptant Wall-Cress. Fl. Jun. July. PL | foot. 



60 A. LA'XA (Smith, prod. fl. graec. 2. p. 28.) radical leaves 

 obovate, lyrately-toothed, hispid, cauline ones cordate-stem- 

 clasping, very smooth ; pods deflexed. '!. H. Native of La- 

 conia, in fields. Flowers white. Pods very long and very 

 narrow. 



//oose-podded Wall-Cress. PL 1J foot. 



61 A. PETIOLA'TA (Bieb. fl. taur. 2. d. 126.) leaves ovate, 

 stalked, smooth ; lower ones lobed ; upper ones repand ; pods 

 striated-angular, spreading. $. !(.. H. Native of Siberia. 

 Flowers small, whitish, about the size of those of Erysimum 

 cheiranthus. Pods spreading, 2 or 3 inches long, obscurely 4- 

 sided. 



Stalked-\eaved Wall-Cress. Fl. Jul. PL | foot. 



62 A. MULTIFLORA (D. C. syst. 2. p. 243.) leaves sessile, 

 lanceolate, toothed, scabrous ; peduncles pressed, many-flowered, 

 pods erect, slender, compressed, crowded ; hairs forked. $ . H. 

 Native of the Pyrenees, on Mount Chatelet. Turritis multiflora, 

 Lapeyr. abr. 386. 



Many-flowered Wall-Cress. PI. -J foot. 



63 A. INTEGRIFOLIA (Lapeyr. abr. 385. suppl. p. 93.) hairy; 

 leaves scabrous, lanceolate, quite entire, cauline ones clasping the 

 stem; petals erect, twice the length of the calyx. $ . Q. H. 

 Native of the Pyrenees, at a place called Mail du Cristal. 



Entire-leaved Wall-Cress. PI. -^ foot. 



64 A. LYRJEFOLIA (D. C. syst. 2. p. 244.) smooth; stem 

 straight, simple ; radical leaves lyrate, stem ones sessile, oblong, 

 acute, toothed; pods sickle-formed. O- H. Native of North 

 America, in woods, at the bottom of the Catskill Mountains. 

 Turritis lyrata, Raf. amer. monthl. mag. 2. p. 44. 



Lyre-lez\ed Wall-Cress. PI. ? 



65 A. ANOUSTIFOLIA (Lam. diet. 1 . p. 220.) radical leaves on 

 long stalks, rhomboid, small, bidentate, cauline ones narrow-lan- 

 ceolate, very entire. Native ? formerly cultivated in the Paris 

 garden. Perhaps only a variety of Carddmine alpina. 



Narrow-leaved Wall-Cress. PL ? 



66 A. ? SILICULOSA (Lam. diet. 1. p. 221.) radical leaves ob- 

 long, en short stalks, smooth, toothed towards the apex ; cauline 

 ones few, narrow, entire. Native of Siberia? Pods flat, nar- 

 rowed at both ends, 4-lines long, 1 or 2-seeded. 



Short-}. added Wall-Cress. PL ? 



67 A. DASYCA'RPA (Andrz. in litt. D. C. syst. 2. p. 244.) 

 leaves hairy ; hairs stellate ; cauline leaves sagittate, almost en- 

 tire ; lobes diverging ; pods hairy-scabrous, rather erect, with 

 the breadth exceeding twice the length of style. Native of Po- 

 dolia. A. recta, Baugm. 



Thick-podded Wall-Cress. Fl. Ju. July. Clt. 1828. PI. { 



to f foot. 



Cult. The species of this genus are very proper for rock- 

 work. A'ralns, albida, alpina, arenbsa, &c. will answer also for 

 the front of flower-borders, as they flower earlier than most border 

 flowers. The perennial species may be either encreased by divid- 

 ing the plants at the root, by cuttings, or by seeds. The annual and 

 biennial species are mostly weedy-like plants ; therefore they are 

 only fit to be preserved in botanical gardens. They should be 

 sown on rock-work, and allowed afterwards to scatter themselves, 

 for by this means they are more likely to be preserved. 



XL OUDNE'YA (to the memory of Dr. Oudney, who 

 found the present plant in many of the Wadeys between Tripoli 

 and Mourzuk, and remarks that camels and mules eat it.) R. Br. 

 in append, to Denh. and Claph. journ. p. 14. 



LIN. SYST. Tetradymamia, Siliqubsa. Silique sessile, linear, 

 beaked, with flat 1-nerved valves. Funicle adnate to the dissepi- 

 ment. Seeds in one row. Calyx closed, bisaccate at the base. 

 Filaments distinct, toothless. Stigmas connate, distinct at the 

 apex. A smooth, branched sub-shrub, with quite entire sessile, 

 veinless leaves, lower ones obovate, upper ones almost linear, 

 and bractless terminal racemes of flowers ; petals obovate veiny. 

 This genus differs from A'rabis in the form of the stigma. 



1 O. AFRICANA (R. Br. 1. c.) T? . F. Native between Tri- 

 poli and Mourzuk, in the Wadeys. Hesperis nitens, Viv. fl. 

 lib. p. 38. t. 5. f. 3. 



African Oudneya. Shrub 1 foot. 



Cult. Should this plant be ever introduced into the gardens, 

 it may be grown in pots filled with an equal quantity of sand 

 and peat, and treated as other alpine plants. It may be either 

 propagated by cuttings or by seeds. 



XII. MACROPO'DIUM (from fiaxpoe, makros, long, and 

 TTOI/C ITO^OC, pous podos, a foot ; in allusion to the pods standing 

 on long pedicels or foot-stalks.) R. Br. in hort. kew. ed. 2. vol. 

 4. p. 108. D. C. syst. 2. p. 244. prod. 1. p. 149. 



LIN. SYST. Tetradynamia, Siliqubsa. Silique linear, pedi- 

 cellate, with flat 1-nerved valves ; seeds orbicular, compressed, 

 flat, girded by a very narrow membrane, disposed in one row in 

 each cell, distant. Perennial or annual, smooth, erect, simple 

 herbs ; with ovate-lanceolate, pointed, serrated or jagged leaves, 

 and long terminal racemes, with almost sessile flowers, which are 

 disposed in the form of a spike. 



1 M. NIVALE (R. Br. in hort. kew. ed. 2. vol. 4. p. 108.) ra- 

 dical leaves ovate, on long stalks, unequally serrated, cauline 

 ones lanceolate, acuminated, narrowed at the base, entire ; flowers 

 sessile ; petals obovate. If.. H. Native on the summits of the 

 Altaian Mountains near the limits of perpetual snow. Cardamine 

 nivalis, Pall. itin. 2. app. no. 113. t. U. ed. gall. 8vo. app. p. 341. 

 t. 68. f. 2. Cleome nivalis, Vahl. herb. A rabis nivalis, Spreng. 

 syst. 2. p. 893. Root somewhat woody. Flowers white. 



Snow Macropodiurn. FL Jun. Sep. Clt. 1796. PL 1 foot. 



2 M. LACINIA'TUM (Hook, fl. bor. amer. p. 42.) leaves all 

 stalked, jagged-pinnatifid ; flowers on pedicels ; petals narrow, 

 linear. O- H. Native of North America, common on dry rocks 

 about Wallawallah, and at Priest's rapid on the Columbia. 

 Flowers white. 



Jagged-\ea.ved Macropodium ? Fl. June, July. PL 2 to 3 ft. 



Cult. M. nit-ale succeeds well in a rich light soil in the open 

 border ; and cuttings will strike root freely under a hand-glass : 

 notwithstanding it will sometimes thrive well in open borders, 

 yet it is very apt to damp off" in the winter ; therefore we would 

 advise a duplicate plant to be kept in a pot as an alpine or frame 

 plant. M. laciniatus being an annual will only require to be 

 sown in the open ground early in spring. 



