Farsetia.] viu. crucifer^ (oliver). 63 



Mozamb. Distr. Zanzibar, Mombaze Island, Boivin {Fournier). 



I do not know this plant or the following. 



5. F. ramosissima, Hochst. in Kotachy, PL Nub. Leaves linear-lan- 

 ceolate. Siliquas short, appressed. 



Nile Iiand. Nubia, Kotschy {Fournier). 



6. F. segyptiaca, Turr. ; DC. Syst. Veg. ii. 287. Shrubby, with re- 

 peatedly forking, rigid, terete branches, hoary with closely-appressed hairs. 

 Leaves linear, hoary. Racemes strict, with subdistant flowers ; pedicels 

 usually from 1 to, at length, 4 lines. Calyx \ in. ; sepals somewhat conni- 

 vent above. Siliqua broadly oblong-elliptical, hoary, ascending, about \ in. 

 long. 



Nile Iiand. Nubia {Schweinf. and Asch. Enum). 



R. Brown desci:ibed in Denham and Clapperton (App. 217), under the name of F. ? stylosa, 

 a plant gathered in the Sahara, with oblong or shortly oval siliquas ; style equalling the 

 breadth of the valves and 2-lobed stigma. The specimens were very imperfect, and I have 

 not seen them. 



8. SISYMBRIUM, Linn.; Benth. et Hook. f. Gen. PI. i. 77. 



Sepals equal or the lateral saccate at the base. Petals unguiculate. Siliqua 

 narrow-linear, often elongate, terete or compressed, many-seeded ; valves 

 usually faintly 3-nerved. Septum membranous. Persistent style short ; 

 stigma undivided or minutely 2-lobed. Seeds in one or sometimes two 

 series, not bordered, usually oblong or ellipsoidal with short free funicles. 

 Radical incumbent. — Usually annual or biennial herbs. Radical leaves 

 entire, lobed or pinnatifid, often rosulate. Flowers usually yellow or white. 



A rather large and very difficult genus, many of the species resembling those of other 

 genera, and often variable. Most of them belong to Europe, "Western and Northern Asia, 

 and the Himalaya. A few species occur at the Cape, as well as in America. 



Radical leaves entire or dentate. 



To 6 in. or taller. Siliquas ascending, \ in. long or more, about 



twice as thick as the pedicel \. S. Thalianum. 



One to 3 in. Siliquas patent or ascending, 3-4 lines long, about 



2^ times as thick as the pedicel 2. 5. Pumilio. 



Radical leaves pinnatifid. 



Tufted, about 6 in. high. Flowering branches nearly leafless, flow- 

 ering from near the base 8. 5. falcatum. 



Erect, simple or branched, 1-3 ft. or more. 



Fruit pedicels about 1 line. Siliquas straight, subulate . . . 4. «S. erysimoidea. 

 Fruit pedicels \-\ in. or longer. 



Leaves pinnatipartite or runcinate ; cauline lanceolate, toothed, 



usually petiolate 5.5. Irio- 



Leaves runcinate, sessile, glaucescent 6. 5. abyssinicum. 



1. S. Thalianum, Gay et Monn. in Gaud. Fl. Helv.iv. 348. Au erect 

 slender annual more or less hispid-pubescent below. Leaves mostly radical, 

 oblanceolate dentate or entire; cauline few, lanceolate. Flowers very small. 

 Siliquas very narrow-linear, on slender spreading pedicels. 



Nile li and. Abyssinia, Bouahit mountain, &Amp^r (^tcAarrf). 



Common in Europe and temperate Asia, occurring also in N. America and at the Cnpo. 



