MANET, 



1. O. CORNICULATA Linn. (Enum. No, 64.) A decumbent, pros- 

 trate or ascending, much-branched delicate perennial, or sometimes 

 annual, more or less pubescent, of a pale green, from a few inches to a 

 foot long. Stipules small, adnate to 'the petiole. Leaves alternate; 

 the petioles about 1' long. Leaflets 3, digitate, broadly obcordate, 

 usually 3" - 4" long. Peduncles axillary, about the length of the peti- 

 oles, bearing an umbel of 2-6 small yellow flowers on reflexed pedi- 

 cels 3" - 4" long. Capsule column-like, ' or more long, with several 

 seeds in each cell. 



In waste places; probably Introduced, but firmly established. A common weed in all 

 but the colder regions of the globe, 



2. O. MAUTIANA Zucc. (Enum. No. G5.) A stemless herb, witb 

 a compound bulbous rhizome, covered with brown 3-ribbed scales. 

 Leaves radical, slightly hairy ; the petioles 4 A - G' long. Leaflets 3, dig- 

 itate, broadly obovate-emarginate, 8" -10" long. -Peduncles radical, 

 rather longer than the petioles, bearing a single umbel, or more fre- 

 quently irregularly divided into 2 or 3 branches, each bearing 1-2 um- 

 bels of pale-purplish flowers. Sepals obtuse, with 2 small glands at 

 the tip, 2"-2i" long. Petals glabrous, 3 or 4 times as long as the se- 

 pals. Stamens and style pubescent. 



Moist places in Nuuanu Valley, Oauu; probably escaped from gardens. A native of. 

 Southern Brazil. 



ORDER XVIII. RUTACE^. 



Herbs, shrubs, or trees ; the leaves punctate with pellucid dots, 

 and without stipules. Calyx of 4 or 5 sepals. Petals 4 or 5, or rarely 

 fewer or none. Stamens as many or twice as many as the petals, in- 

 serted on the outside of a hypogynous disk. Ovary 3-5-lobed, as 

 many celled, with the styles united, or distinct only at the base, or the 

 ovaries nearly separate, during ripening usually separating into the 

 component carpels, which are dehiscent by one or both sutures ; the 

 chartaceous endocarp separating from the woody exocarp. Seeds 

 few or single, mostly with albumen; and a curved embryo. Auran- 

 tiacecK, an Order combined by some botanists with llutacecc, from 

 which it diifers in its berry-like fruit with a rind, and its seeds without 

 albumen, furnishes the Orange, Lime, Lemon, &c. 

 Leaves simple. 



9tamens all free and distinct. 



Petals valvate, 1. PELEA. 



Petals slightly imbricate, 2. MELICOPE. 



Stamens monadelphous below the middle, 3. PLATYDESMA. 



Leaves pinnate, 4. ZANTHOXYLUM. 



1. PELEA Gray. 



Flowers polygamous. Sepals 4, imbricated. Petals 4, valvate. 



