103 



CKUCIFER^. (mustard FAMILY.) 



segments of leaves 2-4, small, terminal cordate-orbicular — Spring — 

 Mountains of Galilee. Samaria, Moab, and Gilead. 



4. C. filiformis, Jacq. (D to 2j!. .3 to .4, sparingly papillose- 

 bristly. Lateral segments of leaves 2-4 small, terminal with truncate 

 or cuneate hase, ovate-orbicular — Spring — Plain of Gennesaret 

 (Tristram.) 



63. RAPISTRUM, Desv. Rapistrxjm. 



Calyx spreading, somewhat bigibbous at base. Petals Fig. 49. 

 clawed, entire. Filaments toothless. Loment indehiscent ; 

 joints 1 -celled ; the lower oblong or pedicelliform, marked 

 with sutures of indehiscent valves, seedless or with 1-2 

 pendulous seeds ; the upper ovoid-globular, beaked, with 

 1 erect seed — Tall, yellow-flowered herbs. 



R, riig^osum, L, © .3 to .6. Lower leaves lyrate ; 

 upper oblong, rejDand. Fruiting pedicels stiff, thickened, 

 as long as and narrower than the obconical lower joint of 

 loment ; upper joint marked with longitudinal crests ; 

 style as long as pod — Spring — Fields and roadsides, com- 

 mon throughout, 



Var. loiigi§tylU]]i, Post. Style twice as long as 

 pod. 



Var. clavatum, Boiss. Lower joint often longer raceme* of 



than pedicel ; upper larger, nearly globular — Phoenician Rapistrum 



coast. '"s^^""'- 

 64. BIDE^MU^, DC. Didesmus. 



Calyx erect, somewhat bigibbous at base. Petals obovate, clawed. 

 Filaments free, toothless. Loments oblong, leathery, with indehiscent, 

 1-seeded, generally angled and grooved joints, the terminal pyrami- 

 dal ; seeds globular, pendulous — Annual, white-flowered herbs, with 

 aspect of Myagrum and Erucaria. 



* Leaves not divided, or only the loicermost lyrate. 



1. D. idgyptius, L. Sparingly scabrous. Leaves olJong 

 obtuse, remotely dentate, or the lowermost lyrate. Joints of loment of 

 equal length, ovate 4-angled, the terminal longer than style — Spring 

 — Plain of Gennesaret. 



* * Leaves 1-2-pinnatisect. 



2. D. teiillifoliu§, Sibth. .3, scabrous. Leaves 

 pinnatisect into short, linear, entire or dentate lobes. Joints 

 of loment equal in length and thichiess, ovate-tetragonal, the 

 terminal a little longer than style — Spring — Beirut, 

 'Aleih ; probably introduced. 



3. I>. roitratus, Boiss. Papillose-puberulent. 

 Leaves bipinnatisect into short, linear lobes. Lower joint 

 of loment shorter, cylindrical, upper thrice as thick, ovate- 

 pyramidal, as long as style — Spring — Palestine (Roth). 

 Jericho (Schlumberger). Beirut (Peyron) 



