EXOGENS. 12i 



coasts, buth tropics. Pods falcate, 6°-8° long ; sds. 2'-3' across, Y 

 thick, of a fine, lustrous brown ; made into snuff-boxes, purses, scent- 

 bottles, etc. Sds. carried by Gulf Stream and ocean currents to Scot- 

 land, Orkneys, Norway. Constantly drifted to Texas coast (especially 

 at Galveston). 



Tribe 5. Sta. 5-10, 1. Parkia. Pis. ^p, small, in dense, long- 

 stalked hds. Sta. 10, monadelph. Pod with edible sds. and pulp. 

 Lvs. 2-pinnate, pinnae and Ifts. very numerous. Large unarmed trees, 

 foliage elegant; few spec, W. Af., Ind., Java, Brazil, Surinam. P. 

 africdna, DoiJKA, 40° high ; lvs. with 20-30 pairs of pinnse, each pinna 

 with 30-50 paii-s of Ifts.— 60 X 100 = 6000 Ifts. in a single If. Sds. 

 ground and made into cakes ; pulp made into sweetmeats and drinks. 

 W. Af , trop. Asia. Brought to Am. by negroes. 3. Pentaclethra. 

 Pis. ij or (^ 9 1 spicate ; sta. 10 ; 5 sterile. Lvs. 2-pinnate, multi- 

 foliolate, as in Parkia. Trees, 2 spec. P. macrophplla, BiJOB Bean, 

 60°-70° high ; lvs. and Ifts. larger than in the other spec. ; pods 2° 

 long, sds. edible. Trop. Af. P. filamentbsa, fls. similar, but If. with 

 more numerous pinnse, and about 4000 linear Ifts. Elegant tree, Brit. 

 Guiana. Pine specimens of If and fls. in herbarium of Columbia 

 College, N. Y. City. 



Ord. 101. Connariceae. — Pis. usually §, nearly reg., small, 

 racemed or panicled ; 5-merous ; sta. 5 or 10 ; carpels 5, rarely 1-3 ; 

 globose, free, hirsute, 1-celled ; fr. a follicle, 1- rarely 2-seeded. Lvs. 

 alt., exstip., 1-3-foliolate or imparipinnate ; Ifts. coriaceous, entire. 

 Erect or climbing Trees or Shrubs, with watery juice. Affinities com- 

 plex. 12 gen. ; 140 spec, tropics, both worlds, but chiefly Asiatic and 

 Malayan. Wood in many very valuable ; sds. edible. 1. Connarus. 

 Pis. white, red. 53 spec, small trees, shrubs, often scandent ; trop. 

 Am., Asia, Af., Pacific Isles. C. (Omphaldbium) LambSriii, Zbbba- 

 WOOD. Tree with valuable striped wood. Guiana. C. grandis, Ma- 

 laya. 2. Rourea, 42 spec, chiefly in Am., Asia ; one, R. sanialoldes, 

 in Af. R. glabra, Cuba. 3. CnSstis, shrubs usually climbing ; fol- 

 licles with stinging hairs. Pew spec. Guinea, Mauritius. 



Subdivision 2. Disciflorae. — Torus usually conspicuous as a disk; 

 annular, or a cushion, or lining the base of the calyx-tube, or con- 

 fluent with the base of the ovary, or broken up into glands. Stamens 

 on or at the inner or outer base of the disk. 



Cashew Alliance.— Pis. §,,({>, J> § ?, c? ?, often irreg. Disk 

 adnate to base of calyx or lining its tube. Sta. usually def. Ova. en- 

 tire, lobed, or apocarpous. Ov. 1-2, rarely more in each cell, usually 

 ascending with ventral raphe, or reversed, or pendulous from a basal 

 funicle, rarely oo horizontal. Perisperm usually 0. Emb. oftcti 

 curved or crumpled. Lvs. usually compound. 102. Anacardiacese. 

 103. Sabiaces. 104. Sapindaceae. 



Ord. 102. Anacardiaceae. — Pis. small, reg., in fascicles, spikes, 

 panicles ; calyx and pet. sometimes accrescent. Pet. 3-5, sometimes 

 0. Sta. 5-6-10, rarely more. Ova. 1-2-5-celled, rarely 5-6 distinct 

 carpels all sterile but 1. Drupe, rarely nut; free, or girt by a disk, 

 or on a pear-.shaped torus. TYees or Shrubs, erect or climbing, gummy, 

 milky-resinous. Lvs. alt., exstip., rarely opp. ; simple, or compound. 

 About 50 gen., 450 spec, chiefly intertropical. Both worlds. 2 

 Tribes : 

 Tribe 1. Ova. 2-5-oelled. Ov. pend. 1. Spondias, Hog-plum. 



11 



