Nasturtium.] III. CEUCIFEBAE. 25 



B. Pod shobt, dehiscing throcgh its entire lisngth, broad, flat, or turgid, compressed at 



RIGHT ANGLES TO THE SEPTUM (iNDEHISOENT IN Senebiera). 



Tribe VI. LEPIDINEAE. — Cotyledons incumbent, straight, incurved or longitudinally folded. 



4. Pachycladon. Pod compressed laterally, not winged. 



5. CapsbI/La. Pod dehiscent, many-seeded. 



* Senebiera. Pod indehiacent, S-seeded. 



6. Lkpidium. Pod dehiscent, winged, 2-i-seeded. 



7. NoTOTHLASPi. Pod much flattened, broadly winged, many-seeded. 



VII. THLASPIDEAE.— Cotyledons decumbent, straight. Pedicels horizontal. 



* Iberis. Outer petals larger than the inner. Pod ovate. 



0. Pod elongate, INDEHISCBNT, 1-CBLLBD, MANJ-SEBDED, or transversely ABTICnLATE, CELLS 



1-SEEDED. 



Tribe Vlll. RAPHANBAE. 



* Eaphanus. 



•MATTHIOLA, R. Br. 



Herbaceous or suffruticose, pubescent or hoary, hairs stellate. Leaves entire. 

 Sepals erect, saccate at the base. Stigma lobed, gibbous. Pod elongate, rounded or 

 compressed. Septum thick. Seeds 1-seriate, winged. 



"M. incana, B. Br. in Ait. Hort. Keiu., ed. 2, iv. 119. Erect, suffruticose. 

 Leaves oblong-lanceolate, entire or obscurely toothed, hoary. Flowers purple. Pod 

 compressed, eglandular. Seeds orbicular, winged. 



NORTH Island : Naturalised on almost inaccessible rocks at Castlepoint, East Ccast. 

 n-stoak. Nov., Deo. Levant, North Africa, &o. 



•CHEIRANTHUS, Linn. 



Suffruticose herbs. Leaves entire or toothed. Flowers large, yellow or reddisn. 

 Sepals erect, the lateral saccate at the base. Petals with long claws. Stigmatic 

 lobes diverging. Pod compressed or slightly tetragonous. Seeds 1-seriate. 



* C. cheiri, L,, Sp. PI. 661. Stems shrubby, branched. Leaves lanceolate, 

 acute, entire, clothed with 2-partite adpressed hairs. Pods tetragonous. 



NORTH and SOUTH Islands : Sparingly naturalised. Wallflower. Oct. to Dec. North 

 and Central Europe. 



1. NASTURTIUM, E. Br. 



Branched herbs, glabrous or clothed with simple hairs. Leaves entire or 



lobed or pinnate. Flowers small, on spreading pedicels. Sepals short, equal, 



patent. Petals slightly clawed. Stamens usually tetradynamous. Stigma 



simple or 3-lobed. Pods terete, curved; valves convex. Seeds 2-seriate, turgid. 



A genus comprising about 20 species, chiefly natives of temperate and warm regions. 



1. N. palustre, DC, Syst. ii. 191. Erect or decumbent, 6in.-34in. 



high, glabrous, pubescent, or rarely pilose. Leaves auriculate, entire, lobed, 



pinnatifid or lyrate ; the segments sinuate-toothed. Racemes short, ebracteate. 



Flowers small, petals scarcely equalling the calyx. Pods oblong, turgid, 



obliquely curved. — Hook, f ., Handbk. 10; Benth., Fl. Austr. i. 65. N.terrestre, 



R. Br. in Ait. Hort. Kew. ix. 110; Sm. E. B. t. 1747; Hook, f., Fl. N.Z. i. 



14. N. semipinnatifidum, Hook., Journ. Bot. i. 246. N. sylvestre, A. Rich., Fl. 



Nouv.-Zel. 309 ; A. Cunn., Precurs. n. 635. 



NORTH and SOUTH Islands : Damp places in lowland districts, but often local. Ascends 

 to 2,000ft. Widely distributed in temperate and subtropical regions. Nov. to Jan. 



