88 ANGJOSPERMM. 



ored i 1 lobe of calyx enlarged, white : berry 2-celled. Shrubs : trop., 

 both worlds, few in Am. > ^ > t- > 



B. Fr. dry, dehiscent or not. 

 Tribe 20. Boll 2-4-celled. Sds. oo. Herbs ; rarely small shrubs. 



1. Houstonia (Hedyotis). Fls. 4-merous, small, white, scarlet, blue, 

 or purple. Elegant small herbs or undershrubs. H. umbellata, Chay- 

 KOOT; rts. furnish dye. Ind. H. cerulea, minute, delicate. 3'-5' 

 li'gh, (|); peduncle 1-flowered; corolla blue, with yellow eje. Com- 

 mon, U. S. H. rotundifblia, %, prostrate, creeping ; fls. white. 

 Sands, N. C, S. H. jmrpilrea, Quaker Ladies; erect, %; 5'-20' 

 high, leafy ; fls. lavender-colored or white, in cymes. Common, TJ. S. 



2. Pentas. Fls. 5-merous. Shrubs ; trop. W. Af P. cdrnea, Ivs. 

 broad, fls. pink, in terminal tufts. Tribe 21. Corolla imb. or con- 

 torted. 1. Rondeletia. Fls. 4-5-merous, capitate. Shrubs or trees 

 with showy, fragrant fls. ; trop. Am. Tribe 22. Corolla lobes val- 

 vate. Boll 2-celled. 1. Pinckneya. Fls. 5-merous, in axil, tufts; 

 1 lobe of calyx enlarged, colored. P. pitbens, Gkokgia Bake ; only 

 known spec; fls. purple; bark used as Quinine. S., U. S. Tribe 

 23. Corolla 2-lahiate. Sds. broadly winged. 1. Henriquezia. Fls. 

 5-merous, large, pink or white (resembling BignSnia), in terminal 

 panicles. Handsome trees, Brazil, Venezuela. 2. Platycarpum, 

 similar ; very tall ; timber valuable. Venezuela. Tribe 24. Corolla 

 reg. ; sds. winged. 1. Bouvardia. Fls. 4-merous, corymbose, red, 

 yellow, white ; often fragrant. Shrubs ; sev. spec. ; Mex. 2. Ma- 

 nfettia. Fls. 4-5-merous, scarlet or pink ; peduncled ; sol. or clustered. 

 Climbing undershrubs ; sev. spec. ; trop. Am. 3. Cinchona, Quinine 

 Trees. Fls. 5-merous, white or pink, very fragrant, panicled. Ever- 

 gre^'n trees or shrubs ; many spec. ; bark yields the quinine of phar- 

 macy ; trop. valleys of Andes Mts. C. Calisaya yields the best qui- 

 nine. 4. Cascarilla. Close to Cinchona, but without the quinine 

 principle. Shrubs ; sev. spec. ; Peru, Brazil. Tribe 25. Fls. in 

 close hds. 1. Cephaliinthus oceidentdlis, Button Bush. Fls. 4- 

 merous, white ; hds. V in diam. ; fr. separating into 2-4-1-seeded 

 carpels. Shrub, 6°-15° high. Shores of streams. Can. and U. S. 2. 

 Sarcocephalus esculentus, Negro Peach. Fls. pink; fusing and 

 ripening into a multiple, peach-like fr. Climbing shrub. Sierra 

 Leone. 



Ord. 74. Caprifoli^cese. — Characters of Alliance (except fls. in 



A ddxa, which see). Fr. a berry. 16 gen., 230 spec. ; N. hemisphere. 



2 Sub-Orders. Sub-Ord. 1. Corolla reg. ; stigmas 3. 1. Addxa 



Moschatelllna, Moschatel ; only spec. Fls. musk-scented, pale 



green, in hds. at the tops of short leaf-stems ; cent. fls. 4-merous, sta. 



8 ; outer fls. 5-merous, sta. 10. Lvs. ternately divided. Low herbs, 



from Qj. rhiz. 6t. Brit. 2. Sambiicus, Eld-kr. Fls. 5-merous; 



usuall)' white, in racemes or cymes ; fragrant ; lvs. pinnate. Herbs, 



shrubs, trees. S. racembsa, shrub ; berries scarlet, racemed ; S. Eur. 



S. pubens, 6° high ; berries red, panicled. S. canadensis, 6°-i5° high ; 



fls. fragrant, in broad cymes ; berries blue-black ; TJ. S. S. nigra, 



similar, but larger; 30° high, stout, branching; fls. cream-colored, 



berries jet-black; wood valuable; cells. Figs. 217, A; 215, A; Eur., 



N. Af., Asia. 3. Vibirnum. Fls. 5-raerous, in cymes ; drupe 1- 



seeded. V. Tinus, Laueestine, fls. pink or white, winter-blooming ; 



