Capselhi.] VIII. CRUCIFER^. 51 



3. C. humistrata (found on damp spots), F. v. M. Fraym. xi. 25. An 

 annual glabrous plant of a few inches high. Leaves divided into linear-lanceolate 

 lobes. Racemes 1 to 4in. long, flowers numerous, pedicels spreading, very slender, 

 from 1| line under the flower to 4 lines under the fruit. Sepals ovate or oblong, 

 I to f line long. Petals oblong-ovate, attenuated at the base, yellow, about 1 

 line long, entire. Stamens 6, filaments free, subulate-linear; anthers yellow, 

 almost round, introrse. Pods 1| to 2 lines long, rhomboid-rotund, often 4- 

 seeded, much compressed, with the base somewhat acute and the apex very 

 shortly acuminate, entire. Seeds roundish-oval, i to f line long, with pellucid 

 margin. 



Hab.: South Queensland. 



10. SENEBIERA, Poir. 



(After J. de Senebier). 



Sepals short, spreading, equal at the base. Petals short. Pod laterally com- 

 pressed, orbicular or broader than long, either indehiscent or separating into two 

 nuts, each with a single seed. Embryo bent in a circle, or the radicle incumbent 

 on the back of the cotyledons, but with the bend above the attenuated base of the 

 cotyledons, not at their junction with the radicle. — Annuals or biennials, much 

 branched and usually prostrate. Leaves entire or pinnately divided. Flowers 

 very small, in short leaf-opposed racemes. 



There are several species dispersed over the warm as well as the temperate regions both of the 

 New and the Old World, and more especially near the sea, the following ones extending to 

 Australia Benth. 



Pods 1 line broad, slightly wrinkled, on slender pedicels. 



Leaves lineajr, entire I. S. integrifoUa. 



Leaves pinnate 2. S. didyvia. 



1. S. integrifolia (entire-leaved), DC. in Mem. Soe. Hist. Nat. Par. ann. 7, 

 144, t. 8, avd Syst. Veg. ii. 522 ; Benth. Fl. Amtr. i. 82. A rigid, glabrous, 

 somewhat glaucous annual (or bienniel?), usually decumbent, and very much 

 branched. Leaves linear, usually acute, f to lin. long or rather more, narrowed 

 into a petiole, quite entire or very rarely with 1 or 2 small teeth. Flowers very 

 small and numerous, in terminal or leaf-opposed racemes usually much longer 

 than the leaves ; pedicels slender, rarely exceeding 1 line. Pods like those of S. 

 didyma, of the same size, and reticulate when young, becoming often warted or 

 even corky when old. — S. linoides, DC. ; Harv. and Sond. Fl. Cap. i. 27. 



Hab.: Bird Island, Wreck Beef, Denham. 



The species has a wide range on the seacoasts of S. Africa and Madagascar, and we have it 

 also from Pratas and other islands of the Chinese seas. S mexicana. Hook, and Am. Bot. 

 Beech. 276, is the same plant, but was probably gathered in the islands of Loo Choo and Bonin, 

 and not in Mexico. — Benth. 



2. S. didyma (double-podded), Pers. Syn. ii. 185 ; Benth. Fl. Amtr. i. 83. 

 Wart cress. A much-branched, prostrate annual, spreading on the ground from 

 6in. to 1ft. or more, glabrous, or with a few long loose hairs. Leaves pinnately 

 divided into 7 to 11 narrow segments, which are usually again cut into 2 to 4 

 unequal linear or lanceolate lobes, the lower leaves often once pinnate, with 

 oblong or obovate, entire or shortly lobed segments. Flowers very small and 

 numerous, in leaf-opposed racemes, which seldom, even in fruit, exceed the 

 leaves, the pedicels slender, 1 to 2 lines long. Pods about f line long and 1 line 

 broad, wrinkled, formed of 2 ovoid distinct lobes, which separate into 1 -seeded 

 nuts when ripe. — Reiohb. Ic. Fl. Germ. ii. t. 9 ; 8. pinnatifida, DC. Syst. Veg. 

 ii. 523 ; Prod. i. 203. 



A common weed in sandy soil, especially near the sea, in all warm countries, perhaps in- 

 digenous to N. Australia, and now established in the neighbourhood of towns in almost all the 

 CololiieS; — Benth, ' : 



