KUOPHILA.] CEUCIFER^E. 33 



DisruiB. Europe, W. Asia, and N. liidia; species 2-3. ETYM. Zpos and (f>t\w 

 from flowering iu spring. Usually combined with Draba, but as distinct 

 as any genus in the Order. 



1. E. ver'na, L.; leaves oblong-lanceolate coarsely toothed. 



Abundant in its common form on walls, paths, &c. ; fl. March-June. Sub- 

 glabrous or delicately pubescent herb, 1-6 in. Leaven ^-1 in., all radical, 

 rosulate. Scapes slender, flexuous. Flowers -| in. diam. Pods 4-^ in., on 

 spreading pedicels. DISTRIB. Europe, temp. Asia to the Himalaya, 

 N.Africa, K America (perhaps introd.). Seventy forms have been separated 

 by M. Jordan as specific, and cultivated with more or less constancy of 

 character. 



Sub-sp. VEH'NA proper ; pod compressed, obovate-oblong twice or more as long 

 as broad, cells 20-40-seeded. Ascends to 1,2UO ft. in Yorkshire. 



Sub-sp. BRACHYCAR'PA, Jordan (sp. ); pod compressed, orbicular-oblong 1-1^ 

 as long as broad, cells 12-20-seeded. Walls in Yorkshire, &c. 



Sub-sp. INFLA'TA, Watson ; pod turgid, ovoid-oblong twice as long as broad, 

 cells 20-40-seeded. Alpine rocks, Ben Lawers, alt. 2,500-3,000 ft. ; fl. 

 JuneJuly. D. vema ft. Hook. 



12*. ALYS'SUM, L. 



Herbs or small shrubs, often covered with stellate down. Leaves 

 scattered or crowded, entire. Flowers small, white or yellow. Sepals 

 short, equal. Petals short, entire or 2-fid. Filaments sometimes toothed 

 or appeudiculate. Pod short, very various in form ; valves flat, concave 

 or convex ; septum entire or perforate ; stigma simple. Seeds 2-10 ; cotyle- 

 dons accumbent. DISTRIB. N. and W. Asia andN. Africa; species 80-90. 

 ETYM. obscure. A very polymorphous genus, almost every organ vary- 

 ing from the normal iu one or other of the species ; hence 10 genera have 

 been made out of it. 



A. CALYCI'NUM, L. ; pubescent with appressed stellate hairs, leaves 

 linear-spathulate, flowers yellow, pods suborbicular, sepals persistent. 

 Cultivated fields, rare and sporadic in England and Scotland, not indigenous ; 

 fl. JuneAug. Annual, hoary. Stem, woody and branched at the base ; 

 branches 3-8 in., rigid, ascending. Leaves |-| in. long, few, scattered, ob- 

 ovate or oblong, obtuse. Flowers small ; filaments with 2 teeth at the base. 

 Fruiting racemes elongate. Pods ^ in. diam. very numerous, on short stiff 

 spreading pedicels, nearly orbicular, turgid with broad thin flat margins, 

 notched at the tip ; style very short. Seeds 1-2 in each cell, narrowly 

 winged. DISTKIB. Central and S. Europe, W. Asia. 



A. MARIT'IMUM, L. ; pubescent with appressed 2-partite hairs, leaves 

 linear, petals obovate white, pod obovoid-orbicular, sepals deciduous. 

 Koriiga, Br. ; Lobula'ria, Desv. ; Gltfce, Lindl. 



Waste places near the sea ; a garden escape ; fl. June-Sept. Annual or 

 perennial. Rootstock prostrate. Stem 4-10 in., ascending, leafy. Leaves 

 1-li in., JQ- jm. broad, linear subacute. Flowers small, odorous; filaments 

 all simple. Pod -f s in., without a border ; pedicels slender, spreading ; valves 

 convex, 1-nerved ; cells 1-seeded ; style slender. DISTRIB. Maritime S. 

 Europe and W. Asia. 



D 



