HIPPOCASTANE.E. II. PAVIA. RHIZOBOLE^E. I. CARYOCAR. 



653 



as those of the preceding, are known in their places of natural 

 growth under the name of Buck's-eye tree. 



Long-spiked 'Pavia. Fl. May, June. Clt. 1820. Shrub 6 ft. 



2 P. RU'BRA (Lam. illus. t. 273.) capsules unarmed ; stamens 

 shorter than the 4-petalled corolla ; leaflets 5, elliptical-oblong, 

 acute at both ends, and are, as well as the petioles, smooth, but 

 pilose at the origin of the nerves beneath. Tj . H. Native of 

 North America in fertile valleys on the mountains of Virginia 

 and Carolina ; said also to be a native of Brazil and Japan, 

 ^'sculus Pavia, Lin. spec. 488. Wats. dend. brit. t. 120. 

 Duham. arb. 2. t. 19. Flowers of a dirty-scarlet colour in loose 

 racemes. Usually a shrub, but sometimes a small tree. 



tfed-flowered Pavia. Fl. May, June. Clt. 1711. Shrub 4 feet. 

 Tree 12 feet. 



3 P. DI'SCOLOR ; capsule unarmed ; leaflets 5, acuminate at 

 both ends, tomentose beneath, unequally serrulated ; raceme 

 thyrsoid, many-flowered; corolla of 4 conniving petals, with 

 their claws the length of the calyx ; stamens 7, shorter than the 

 corolla. T; . H. Native of North America, principally in the 

 western territory of Georgia, .flS'sculus discolor, Pursh. fl. amer. 

 sept. 1. p. 255. Ker, bot. reg. 310. Flowers variegated with 

 white, yellow, and purple. 



Two-coloured-\eaved Pavia. Fl. May. Clt. 1812. Sh. 4 ft. 



4 P. HY'BRIDA (D. C. prod. 1. p. 598.) capsules unarmed; 

 stamens shorter than the 4-petalled corolla ; petioles smooth ; 

 leaflets 5, elliptical-oblong, acuminated at both ends, and clothed 

 with velvety pubescence beneath. Tj.H. Native of North 

 America, principally in the western territory of Georgia. ^E's- 

 culus hybrida, D. C. hort. monsp. 1813. p. 75. Flowers varie- 

 gated with yellow, white and purple, disposed in thyrsoid race- 

 mes. Truly an intermediate plant between P. rubraandP.Jlava. 



Hybrid Pavia. Fl. May, June. Clt. 1812. Shrub 4 feet. 



5 P. Hu^Miiis (G. Don, in Loud. hort. brit. p. 143.) capsules 

 unarmed ; stem decumbent ; leaflets 5, lanceolate, stalked, un- 

 equally serrated, pubescent beneath ; calyx cylindrically-funnel- 

 shaped and pubescent, as well as the convolute corolla ; stamens 

 inclosed, a little longer than the calyx. Tj . H. s Native of 

 North America. ^E'sculus humilis, Lodd. cat. Lindl. bot. reg. 

 t. 1018. Flowers blood-coloured, in loose terminal racemes. 

 This plant is propagated by suckers. 



Humble Pavia. Fl. May, June. Shrub 2 to 3 feet. 



6 P. FLA'VA (D. C. prod. 1. p. 598.) capsules unarmed; sta- 

 mens shorter than the 4-petalled corolla ; petioles pubescent, 

 flattish above ; leaflets 5-7, elliptical-oblong, acute at both ends, 

 pubescent beneath, as well as the nerves on the upper surface. 

 T? . H. Native of North America in the mountains of Virginia 

 and Carolina, and the woods of Kentucky, .fli'sculus flava, Ait. 

 hort. kew, 1. p. 494. JE. lutea, Wangh. in act. nat. scrut. berl. 

 8. p. 133. t. 6. Pavia lutea, Poir. diet. 5. p. 94. Flowers pale- 

 yellow disposed in thyrsoid racemes. 



Yellow-Qovtered Pavia. Fl. May, June. Clt. 1764. Tree 

 20 to 30 feet. 



7 P. NEGLE'CTA (G. Don, inLoud. hort. brit. p. 143.) capsules 

 unarmed, but the ovary is tomentose ; leaflets 5, lanceolate, ser- 

 rulated, tapering to the base, flat, rather plicate, smooth beneath, 

 but pilose in the axils of the veins ; calyx campanulate, obtusely 

 5-toothed, about the length of the pedicel ; stamens rather 

 longer than the corolla ; superior petal veined. 1? . H. Native 

 of North America. ^E'sculus neglecta, Lindl. bot. reg. 1009. 

 Leaves with rufous down on the veins on the upper side. 

 Flowers pale-yellow, veined with red disposed in thyrsoid racemes. 



Neglected Pavia. Fl. May, June. Tree 20 feet. 



Cult. This genus is composed of shewy flowering shrubs 

 and trees, well adapted for shrubberies. They will thrive well 

 in any soil, but the more loamy the better. They may be in- 

 creased by layers put down in the spring, or by grafting or bud- 



ding on the -common horse-chesnut. Seeds, when they can be 

 procured, should be sown singly in rows, in the month of March 

 or April, about an inch under ground ; and when the plants are 

 of sufficient size, they should be planted out where they are in- 

 tended to remain. 



ORDER XL VIII. RHIZOBO'LE-E. D. C. prod. 1. p. 599. 



Calyx usually of 5 sepals (f. 110. a.), rarely of 6, more or 

 less connected at the base, therefore it is commonly called 5-6- 

 parted or 5-6-cleft. Petals unequal, usually 5 (f. 110. 6.), rarely 

 8, alternating with the sepals when the same number, inserted 

 into the hypogynous disk with the stamens, and adnate to their 

 tube. Stamens very numerous, disposed in a double order on 

 the disk, inner series usually shortest, with sterile anthers, with 

 the filaments monadelphous at the base, the rest filiform, awl- 

 shaped, with round anthers. Ovary free, subglobose (f. 110. e.), 

 somewhat tetragonal, 4-celled, 4-seeded. Styles 4 (f. 110. d.) 

 5-6. Stigmas simple. Fruit containing 4 adglutinated nuts, but 

 usually fewer from abortion (f. 110. /.). Nuts indehiscent, 1- 

 celled, covered with a hard shell, which is beset with bristles out- 

 side. Almonds or seeds kidney- shaped, keeled on the back, ex- 

 albuminous, tapering to both ends. Funicle dilated into a spongy 

 2-lobed caruncle. Embryo with a very large ascending ra- 

 dicle, which is the substance of the almond eaten, and with 

 very small, ovate-lanceolate, leafy cotyledons, lying in the 

 furrow of the radicle. Trees with opposite, stalked, palmate, 

 stipulate leaves, composed of 3-5 leaflets, and racemose bract- 

 less flowers. This is a very distinct order, approaching on one 

 hand the Terebinthacece, and especially with Mangifera, but 

 from the hypogynous insertion of the petals and stamens and 

 form of fruit it comes more near to Sapindacece. It agrees also 

 with HippocastanecB in the leaves being opposite, as well as 

 being palmately compound, but in Hippocastdnece the radicle is 

 small and the cotyledons are large, but on the contrary in R hi- 

 zobolea: the radicle is large and the cotyledons are small, but 

 it differs also in the large regular flowers, and in the number of 

 stamens. In both these orders the substance of the albumen 

 appears as if it was consumed by various parts of the embryo. 

 The order is remarkable for containing the Soari Saouari or 

 Sunarrorv-nut and Butter-nut. The first is not unfrequent in 

 fruiterers' shops. It is sweet and palatable. 



I. CARYO'CAR (from Kapvov, caryon, a nut. The species 

 bear large fruit containing eatable nuts). Lin. mant. 247. D. C. 

 prod. 1. p. 599. Rhizobolus, Gsert. fruct. 2. p. 93. Pekea 

 and Saouari, Aubl. guian. l.p. 594 and 599. 



LIN. SYST. Polyandria, Tetra-Hexagynia. Calyx 5 (f. 110. 

 a.) -6-"parted. Petals 5 (f. 110. 6.) -8. Stamens numerous, 

 monadelphous at the base. Styles 4 (f. 110. d.) 5-6. Ovary 

 5-6-celled ; cells 1-ovulate. Drupe containing 4-5 reticulated 

 hispid nuts, or from abortion 1-2 (f. 110. 6.) or 3. 



1, Saoudri (the name of C. glabrum in Guiana}. Aubl. 

 guian. 1. p. 599. D. C. prod, 1. I. c. Leaves trifoliate. 



1 C. NUCIFERUM (Lin. mant. 247.) leaves trifoliate ; leaflets 



