FLOKA OF THE HAWAIIAN ISLANDS. 117 



applied to the back of one of the cotyledons, but in both the Hawaiian 

 species, with the radicle applied to their edges !— Flowers small, white. 

 Stamens often only two!— The Hawaiian species are undershrubs but 

 usually the species are herbs. 



A considerable genus, of temperate and tropical regions. 



1. L. OwAHiENSE Cham. & SchlerM. {Enum. No. 6.) Pods nearly 

 orbicular, wingless, notched ; the shallow notch including the short 

 style. Leaves obovate, tapering at the base into a short margined peti- 

 ole ; entire in the lower half, the upper half coarsely serrated, or some- 

 times the leaves are narrower and nearly entire. 



Coast of Oahu and Hawaii; also Kaala Mountains, Oahu. Lanai. 



2. L. SEREA i?. Jfa^m. {Enum. No. &.) Mature pods broadly orbic- 

 ular, broader than long, scarcely notched, and terminated by the short 

 and delicate style; the young pods somewhat ovate-rhomboidal in 

 outline. Leaves lanceolate, tapering to a point at both ends, some- 

 what long petioled, their margins incised-serrate like a saw. — A strag- 

 gling, much branched shrub, 2°-3° high. 



In the Hanapepe Valley, Kauai. 



3. SENEBIERA Poir. 



Pouch flattened contrary to the narrow partition; the two cells 

 indehiscent, but falling away at maturity from the partition as strongly 

 wrinkled or tuberculate closed nutlets, 1-seeded. Cotyledons long and 

 narrow, bent transversely below the middle, so that the radicle lies 

 against the back of one of them. Style very short. Low and diffuse 

 or prostrate annuals or biennials, with minute whitish flowers. Sta- 

 mens often only two. 



A small genus, of the warmer regions of the globe. 



1. S. DLDYMA Pers. (Eniim. No. 7.) Leaves 1 -2-pinnately part- 

 ed. Pods notched at the apex, rough-wrinkled. 



Eoad-sides, &c., becoming common. (Doubtless introduced). Originally from the 

 warm parts of America, but now diffused nearly all over the world. 



Order V. CAPPAEIDACE^. 



Herbs or shrubs, with cither a pungent juice like that of Cruciferse! 

 (as in Capers), or nauseous ; like the former order in having 4 sepals, 

 4 petals, &c. ; but the stamens when 6 not tetradynamous, often very nu- 

 merous, the ovary 1-celled, commonly raised above the rest of the 

 flower on a stalk (stipitate), and the seeds kidney-shaped, the embryo 

 coiled instead of folded. Chiefly in warm climates. 



Herbs: stamens 6: capsule with 2 pi acent;e. 



Stamens on the long stalk of the ovary, . . . ....... I. GfYtNAJfDKOI'SIS- 

 StameQS on the receptacle with the petals^ 2. Cleome. 



Shrubs : berry with several placenta;,. , , , 3, CappaeiS, 



