EXOGENS. 1X9 



large, flat, used as coffee by early settlers. Lvs. handsome, 2-piniiate, 

 ^°-Z° long. Western N. Y. to 111., S. and S. W. 6. Haematdxylon 

 campechiaiium, LoawooD Tree. Only spec. 30°-40° high ; fls. yel- 

 low, racemed ; pod flat, 2-seeded ; lvs. paripinnate. Heartwood fur- 

 nishes the Logwood dye of commerce. vV. Ind., Cent. Am. 



Tribe 7. Lvs. usually imparipinnate. Petals usually 5, suhequal. 

 Ov. 3-00. 1. Sclerolobium. Ms. !J , small, yellow, fragrant, in large 

 racemose panicles. Pod compressed, woody, indehisc, few-seeded. 10 

 spec, trees, Brazil, Guiana. S. chrysoph'gllum, lvs. with golden-sillcy 

 hairs on under surface ; tree 60°-100° high ; wood white, used in 

 making charcoal. N. Brazil. 



Sub-Ord. 3. Mimoseae. Mimosas. — Stem woody, rarely herba- 

 ceous ; sometimes aquatic and floating. Lvs. simple (phyllodes) or 

 2-3-pinnate, sometimes sensitive. Petals small. Fls. g , or !J (^ 9) 

 reg., 4-5-merous, mono- or polypelalous, in spikes or hds., rarely in 

 panicles or racemes. Sta. usually double or multiple the petals, rarely 

 equal ; filaments free or monadelphous, usually much longer than 

 petals. 5 Tribes : 



Tribe 1. Sta. indef. (rarely 10-15) ; fils. connate at base or beyond 

 the middle. 1. fnga. Lvs. pinnate, Ifts. 4-12, petiole often alate. 

 Fls. monopet., white or yellowish, in spikes or hds. ; sta. oo, mona- 

 delph., much longer than corolla. Pod woody, indehisc, with thick- 

 ened edges ; straight or slightly curved. Sds. enveloped in sweet, 

 edible pulp. 150 spec, large evergreen shrubs or trees. Trop. Am., 

 chiefly Guiana and Brazil. I. FeuUlei, Pacay. Pods 2° long. Peru. 

 I. spectdbilis, large, showy tree ; pods 2°-3° long, 3' wide. Panama. 

 1. vera, small tree ; fls. white ; pods falcate, 6' long. W. Ind. 3. 

 Pithecolobium. Fls. of Inga; but lvs. 2-pinnate, pinnae few; pod 

 dehisc, falcate, curved into a ring, or spirally twisted, with thin, 

 edible pulp; evergreen trees, shrubs; 100 spec, trop. Am., trop. 

 Asia, Australia. P. diclce, large tree; pods irregularly swollen, 

 curled at top. Mex. P. unguis-cati, tree; legume spirally twisted. 

 S. Fla., W. Ind. P. guadalupense, pod falcate. S. Fla., S. Am. 3. . 

 Callidndra. Lvs. 2-pinnate, pinnse often numerous. Corolla small ; 

 stas. with long, showj', usually red filaments ; in hds. or racemes. 

 Pods dehisc. ; valves rolling back and exploding the ripe sds. 80 

 spec Elegant evergreen shrubs or small trees, rarely herbs. C. dia- 

 demdta, shrub, fls. pink, lvs. 600-800-foliolate. Brazil. C. Tweedii, 

 shrub, fls. scarlet, crimson. Mex. 4. Albizzia. Near Calliandra. 

 Small trees. A. (Acacia) Julibrissin (Persian Julibrichim, Silk-rose), 

 Silk-Flovtee Tree. 20°-30° high ; fls. in large, pompon-like hds., 

 stamens very long,, silk-like, pale rose. Sd. sprouting, Fig. 7, B. 

 Persia. Common in Southern gardens, U. S. Included in Acacia by 

 some botanists. 



Tribe 2. Sta. oo, fils. free, or connate at base. 1. Acacia. Petals 

 free or connate ; fls. in globular hds. or long spikes. Lvs. 2-3-plnnate, 

 often 800-1800-foliolate, elegant; iu some spec, (chiefly Australian) 

 reduced to phyllodes. Pods various. Evergreen shrubs or trees, often 

 gum-bearing; wood valuable, light or heavy in weight, light or dark 

 in color, often resembling (and called) Ebony. About '420 spec , 

 both worlds. A. ardbiea, 20°-30° high ; fls. white. Yields Gum 

 Arabic. Arabia, E. Ind. A. melanoxylon, Australian Ebony, 

 20° high ; fls. yellow ; lvs. reduced to phyllodes. Wood black, light 



