288 NATURAL HISTORY OF PLANTS. 



chartaceous or membranous, reticulate, broadly alate. — Seeds go, 

 2-seriate ; funicles free ; transverse or descending ; testa (mucous) 

 immarginate ; cotyledons conduplicate. — Annual branching glabrous 

 herbs ; leaves alternate entire ; superior auriculate-amplexicaul ; 

 flowers 1 in racemes at first short corymbiform, afterwards elongated ; 

 pedicels slender, usually short {Arabicr). 



153. Psychine Desf. 3 — Sepals elongated erect; lateral hardly 

 saccate at base. Petals long-unguiculate. Stamens toothless. 

 Siliqua large, broadly obcordate or obcuneate-2-lobed ; septum 

 complete narrow hyaline ; valves turgid at base, broadly winged 

 above, boat-shaped coriaceous, separating scarcely or not at all ; 

 style long-subulate, at base sub-4-gonous, afterwards hardened ; 

 apex stigmatose capitate emarginate. Seeds cc, small, subglobose 

 or shortly ovoid, sometimes hardly compressed, glabrous ; embryo 

 thick ; cotyledons conduplicate. — An annual branching hispid 

 herb ; leaves obovate ; radical petiolate ; cauline sessile dentate, 

 auriculate at base ; flowers'* in elongated racemes ; bracts foliaceous ; 

 pedicels slender {North Africa*). 



154. Dilophia Thoms. 6 — Sepals patulous, equal at base, rather 

 thick at apex, imbricate. Petals long-tapering at base. Siliqua 

 short, shortly stipitate, broadly obcordate 2-dyrnous ; style thick 

 very short ; apex stigmatose truncate ; valves short, behind thickly 

 2-cristate ; septum broadly fenestrate, afterwards disappearing ; 

 replum broad, saccate on both sides at base. Seeds 1—4 in each 

 cell, unequally oblong immarginate ; funicles rather thick ; radicle 

 incumbent or obliquely accumbent. — A depressed glabrous rather 

 fleshy herb ; root perennial elongated ; collar multiple ; leaves 

 densely rosulate, unequally spathulate obovate or linear, entire or 

 sinuate-dentate ; flowers crowded in branching contracted umbelli- 

 form racemes, dense and leafy at base {Tibet 7 ). 



1 Rather large, purple. 3 Spec. 1. P. stylosa Desf., loc. cit. — Reg., 



2 Spec. 2, 3. Hook., Icon., t. 223.— Jattb. Ind. Sem. Hort. Petrop. (1857).— Walp., Ami., 

 & Spach, III. PI. Or., t. 296, 297.— Boiss., Fl. vii. 162. 



Or., i. 398. — Waip., Ann., ii. 54. 6 In Hook. Journ., iv. t. 12; v. 19.— Hook. 



3 Fl. All., ii. 69, t. 148.— DC, Prodr., 224.— f. & Thoms., in Journ. Linn. Soc, v. 175.— 

 Endl., Gen., n. 4963.— B. H., Gen., 89, n. 105. B. H., Gen., 89, n. 102. 



4 Nearly of Brassica or Matthiola, rather ' In salt marshes. Spec. 1. D. salsa Thoms., 

 large ; petals white, with blackish veins. loc. cit. 



