RUTACE^. 143 



Plate 155, 



RUTOSMA, Nov. Gen. 



Calyx 4-lobus, persistens. Petala 4, concaviuscula, inte- 

 gerrima. Stamina 8, petalis breviora. Ovarium 2-lobum, 

 2-loculare, disco S-lobo eporoso insidens, fmctiferum breviter 

 stipitatum ; loculis 8-ovulatis. Stylus gracilis : stigma ca- 

 pitatum, integrum. — Herba graveolens, humilis ; caulibus e 

 radice crassa simpliciusculis ; foliis linearibus integerrimis ; 

 inflorescentia racemiformi. 



Calyx four-cleft, much shorter than the corolla, herba- 

 ceous, persistent. Petals 4, alternate with the lobes of the 

 calyx, oval, dotted like the rest of the plant with large pellu- 

 cid glands, not unguiculate, entire, inserted on the base of 

 the thickened hypogynous disk, convolute-imbricated in 

 aestivation, barely spreading in anthesis, deciduous. Stamens 

 8, inserted on the disk just within the petals and shorter than 

 they, or the longer ones (the four opposite the sepals) nearly 

 equalling them in length : filaments subulate-filiform, naked : 

 anthers oval, introrse, fixed by the base, glandular-apiculate ; 

 the cells apposite, opening longitudinally. Hypogynous disk 

 produced above the insertion of the stamens and around the 

 base of the ovary into eight equal glandular lobes, which are 

 not nectariferous-punctate as in Ruta. Ovary at first sessile 

 on the disk, obcordate-two-lobed, two-celled, the cells op- 

 posite two of the sepals : style central, long and slender, 

 undivided, deciduous : stigma ovoid-capitate, entire. Ovules 

 8 in each cell, pendulous (or the uppermost rcsupinatc ascend- 

 ing) from a thickened axile placenta which projects into the 

 cells, anatropous. 



Capsule coriaceous, raised on a short stipe above the disk, 

 deeply obcordate-two-lobed, somewhat flattened contrary to 



