SAPINDACEJE. 



PAULLINIA. 



Sepals 5, or 4 in consequence of the cohesion of 2 ; the 2 ex- 

 ternal the smallest. Petals 4, with a scale inside, above their 

 base. Hypogynous glands 2-4. Stamens 8, out of the centre. 

 Ovary out of the centre, 3-celled, with a trifid style, and 1 as- 

 cending ovule in each cell. Capsule pyriform, 3-cornered, often 

 with 3 short wings at the point, 3-celled, rarely 1-2-celled, 

 3-valved. Arillus 2-lobed. 



242. P. australis Aug. de St. H. pi remarq. p. 236. t. 24. B. 

 Fl.'bras. i. 375. Brazil, on the banks of the River Uruguay. 



Leaves unequally pinnated, in 3 pairs ; the lower in 2 pairs ; the inter- 

 mediate trifoliolate ; the upper simple ; leaflets oblong, wedge-shaped, 

 coarsely incised and serrate, smooth. Petiole naked ; rachis winged. 

 Capsule pyriform, very obtuse. Supposed by M. Auguste de St. 

 Hilaire to be the plant from which a species of Polistes prepares a veno- 

 mous honey in the woods of Brazil. (See an account of this poison 

 and its effects in the " Plantes remarquables," p. 192. 



MAGONIA. 



Flowers polygamous. $ . Calyx 5-parted, unequal, re- 

 flexed. Petals 5, linear, unequal. Disk unequal, between 

 the petals and stamens ; on one side long and double, in the 

 other short, simple and rugose. Stamens 8, declinate. $ . 

 As in the male, but stamens much smaller and not decli- 

 nate. Ovary 3-celled, many-seeded ; style curved ; stigma 

 3-lobed. Capsule large, woody, 3-valved, loculicidal. Seeds 

 large, flattened, surrounded with a wing. Hilum in the edge. 

 Trees with a corky bark. Leaves alternate, abruptly pinnate, 

 without stipules. Flowers panicled. 



243. M. pubescens Aug. de St. H. pi. rem. tt. 23 and 24 

 A. Fl. bras. i. 394. Phaocarpus campestris Mart. n. g. and sp. 



pi. i. 62. tt. 37 and 38. Common in the western deserts of 

 the province of Minas Geraes in Brazil. (Pao de Tinguy.) 



A small tree. Branches downy. Leaflets 8, ovate or oblong, sessile, 

 deeply eniarginate, downy. Flowers in a terminal sessile or stalked 

 panicle from 9 to 16 inches long. Calyx downy, yellowish-green. 

 Petals linear, obtuse, above in the middle smooth and dark purple, at 

 the edges and point downy and green. Fruit a large, woody, globose, 

 3-cornered, somewhat depressed capsule, with 3 valves, 3 cells, and 

 many seeds. Ashes extremely alkaline. Bark used for subduing the 

 swellings produced in the hides of horses by the stings of insects. 

 Leaves lethal to fish. 



SCHMIDELIA. 



Sepals 4, unequal. Petals 4, either naked on the inside or 

 usually furnished with a scale above the unguis, the fifth or 

 superior one deficient. Disk incomplete, with 4 glands opposite 



122 



