KRSEDACE^. (MIGNONETTE FAMILY.) 113 



Ain-Hesban and Araq-el- Amir, Moab. A plant heretofore observed only 

 in northern Persia. 



1 1 Sepals deciduous. Pods erect ^ medium. Seeds small. 



X Lobes of upper petals 1-^^ similar ; Jilaments persistent ; seeds pitted. 



9. R.. stenostachya, Boiss. .3, papillose-asperuloua, grey. 

 Lower and upper leaves linear, entire, intermediate ternate, -with 

 linear lobes. Flowers subsessile, minute, forming a long spike-like 

 raceme ; sepals lanceolate, as long as corolla ; upper petals 9-lobed ; 

 filaments deciduous ; capsules minutely scabrous, obovate-oblong ; 

 seeds minute — Spring — Sinaitic valleys. 



10. R, mnricata, Presl. (D If .3 to .5, muricate, rigid. 

 Lower leaves entire, linear-lanceolate, the others ternate with linear to 

 linear-lanceolate lobes. Flowers .004 broad, short-pedicelled, upper 

 petals 7-lobed ; filaments deciduous; capsules glabrous, elliptical, .005 

 to .01 long ; seeds minute — Spring — Hot valleys above Dead Sea, 

 below level of Mar Saba, to Sinai. 



Var. nndulata, Post. Margin of leaves wavy — Hot rocks ; 

 Wadi-Kelt. 



X X Lateral lobes of upper petals minute, central olovate ; filaments 

 deciduous ; seeds smooths 



11. R. pruino§a, Del. (f) .3, muricate, stiff. Leaves rigid, 



linear-lanceolate, entire, a fete ternately cut. Flowers short-pedicelled 

 in a spike-like raceme ; capsules papillose, cylindrical-club-shaped — 

 Spring — Desert by south end of Dead Sea, et-Tih, Sinai, and south- 

 ward. 



* Flowers ii-merous. Pods ^-toothed. Leaves entire. Placentm Z-lobed. 



12. R. Lnteola, L. (D Dyer's Weed or Weld. .5 to 1, glab- 

 rous, stiff, branching from base. Leaves linear-lanceolate, often wavy, 

 and often denticulate above base. Flowers nearly sessile ; sepals per- 

 sistent, shorter than corolla ; filaments persistent ; fruiting raceme 

 often .5 long ; capsules stiff, obovate-truncate, .005 long and broad, 

 acutely toothed, deeply 6-Jluted, the lobes more or less hnobbed by trans- 

 verse constrictions ; seeds glabrous — Spring and summer — Hills and 

 roadsides ; south-west of Dead Sea, Hauran, Amanus and northward. 



3. OLiIOOMERIS, Cambess. Oligombris. 



Sepals 2-5. Petals 2, turned toward axis, entire or lobed. Disk 

 none. Stamens 3, turned toward axis, somewhat monadelphous at 

 base, the middle one between, the other two opposite the petals. Cap- 

 sules chartaceous, gaping at apex, 4-grooved — Annual herbs with 

 entire leaves, and minute sessile flowers in slender, spiked racemes. 



O. subulata, Del. © .1 to .3, branching from base and above. 

 Leaves linear, subulate. Pod oblate-spheroidal, .002 broad, glabrous, 

 or papillose at back of carpels — Spring -- Et Tih and southward. 



18 



