ANALYSIS OF THE GENERA. 15 
ANALYSIS OF THE SUB-ORDERS, TRIBES, AND GENERA. 
SUB-ORDERS. 
Fruit a silique (linear pod.) 
Silique not jointed .........sseseeceseseeve SILIQUOSH. 
Silique separating by transverse articu- 
ations o...s.ece.cecsecsesecteesee LOMENTACER. 
Fruit a silicle (roundish or ovate pouch.) 
Silicle two valved. 
Valves broad, convex at the back ... Lariserram. 
Valves narrow, compressed or winged 
at the back.......esccscsccseseeee ANGUSTISEPTE. 
Silicle single valved, nut-like ..... seeeeee NUCUMENTACEE. 
SuB-oRDER 1. Srviquos#. 
Cotyledons accumbent O=. (The radicle 
applied to the edges of the lobes). I. AnaBipEm. 
Cotyledons incumbent O/|. (The radicle 
applied to the back of the lobes)... II. SisymBrea. 
Cotyledons conduplicate o>. (The 
lobes folded lengthwise, the radicle 
Within the lobes......s.ccesseevesseeee LIT, BRASSICEE. 
TriseE 1. ARABIDER. 
Seeds compressed, sometimes marginate. 
Calyx with two sacs at the base. 
Stigmas converging, thickened or horned 
at the back.........ssssseseeeee.. MATTHIOLA, V. 2.p 896. 
Stigmas spreading, capitate, not thick- 
ened or horned at the back... CHEIRANTHUS, Vv. 2. p, 899. 
Calyx equal at the base. 
Seeds in a double row in each cell. 
Pods short, rounded, valves concave. NastuRTIUM, V. 2. p. 926. 
Pods linear, elongated, valves flat ... Turniris, v. 2. p. 905. 
Seeds in a single row in each cell. 
Flowers yellow ......ssssseseccsesressseee BDARBAREA, V. 2. p. 901. 
Flowers white, purple, orrose coloured. 
Pods linear, with flat valves. 
Valves with one rib at the back. Arasis, v. 2. p. 902. 
Valves without a rib at the back. CarDAMINE, V. 2. p. 922. 
Pods lanceolate........ssccsscesesseeeee DENTARIA, V. 2. p. 921. 
TRIBE 2. SISYMBREZ. 
Calyx with two sacs at the base ........... HESPERIS, Vv. 2, p. 808. 
Calyx equal at the base. 
Pod tapering, compressed .........seee4 SISYMBRIUM, V. 2. p. 906. 
Pods four angled ....s0cseseessecresrereeee EXRYSIMUM, V. 2. p. 909. 
