64 viTi. CRUCIFER.E (oliver). [^Sisymb 



2. S. PuxniliOy Oliv. A low, often rather tufted annual, more or less 

 hispid below. Leaves chiefly radical and rosulate, spathulate- or linear-lan- 

 ceolate, entire or broadly toothed. Flowers minute. Siliquas narrow-linear, 

 more or less spreading. — Cardamine pusilla, Hochst. in PI. Schimp. Abyss. 



Nile Liand. Abyssinia, mountain summits, Schimper ! 



I have not seen satisfactory specimens of this plant, which may prove a form of some 

 other species. The specific name I am obHged to change under Sisymbrium^ as it is already 

 occupied. 



3. S. falcatum, Fuurn. Recherches Crucif. 135. Tufted and branched 

 at the base. Stems about 6 in. tall, erect or ascending. Leaves all or nearly 

 all radical, pinnatifid, with the terminal lobe usually larger, lateral lobes ob- 

 tuse or acute, spnrsely pubescent or nearly glabrous, narrowed into rather 

 long linear petioles. Flowers rather large. Siliquas narrow-linear, spreading 

 or ascending, longer than the pedicels. — Braya falcata, Hochst. in PI. Schimp. 

 Abyss. Arabis falcata. Rich. PI. Abyss, i. 17. 



Nile Iiand. Abyssinia, on mountain summits, Schimper ! 



I follow Dr. Hooker in referring this plant to Sisymbrium ; M. Fournier refers it with 

 doubt. 



4. S. erysimoides^ Besf.; DC. Syst. Veg. ii. 482. A glabrous an- 

 nual of 1-3 ft., simple or branched. Leaves lyrate-pinnatisect or, at least 

 the upper, with the lobes confluent more or less and ovate-lanceolate, va- 

 riously toothed. Racemes elongate, many-flowered. Pedicels of fruit about 

 1 line. Siliquas divergent, rigid, linear-subulate ; valves 3-nerved ; beak 

 short. 



Nile Land. Abyssinia, Schimper. 



A wide-spread plant in the Mediterranean region. I have not seen Abyssinian speci- 

 mens myself. 



5. S. IriOy Linn.; DC. Syst. Veg. ii. 467 (var. maxhnuni). An erect 

 more or less branched herb with a smooth stem, glabrous or, in the African 

 plant, sparsely pilose, at least below. Radical leaves oblanceolate, piunati- 

 partite, with spreading, rather acute segments or subruncinate. Cauline 

 leaves narrow-lanceolate, the teeth or segments towards the base usually 

 larger and deeper, usually shortly petiolate. Racemes elongate, leafless. 

 Flowers small. Siliquas elongate, very narrow-linear, rather flaccid at first 

 and subtorulose, spreading, 1^-2 in. or more in length, on pedicels of \-\ 

 in. Seeds oblong, under a lens very minutely granulate. — S. maximum^ 

 Hochst., Fourn. Recherches Crucif. 72. 



Nile Ijand. Abyssinia, Schimper ! 



Widely spread in Southern Europe and Western Asia, extending eastward to the Punjab, 

 westward to the Canaries. Specimens from the latter islands closely resemble the Abys- 

 sinian plant. Is not S. capense, Thunb., referable to the same species ? 



6. S. abyssinicum, Tourn. Recherches Crucif. 71. Annual, with 

 sparse, spreading, rigid hairs, attaining 2-3 ft. Leaves sessile, runcinate, 

 glaucescent, thinly hairy. Pedicels ascending, about equalling the flowers, 

 at length 6-7 lines. Siliqua torulose, rigid, compressed,, 2 in. long, rostrate ; 

 valves 3-nerved. 



Nile Land. Abyssinia, Schimper. 



