EXOGENS. 81 



Ord. 65. Lobeliaces. — Fls. SJ , rarely $ (^, racemed, spiked, 

 rarely in a corymb or hd. ; 1-2-labiate, rarely with 5 free petals. Sta. 

 5. Berry or boll 2-3-1-eelled, cells oo-seeded. Herbs, rarely Shrubs, 

 29 gen, nearly 400 spec; chiefly trop., both worlds. 1. Lobelia. 

 Boll. Corol. 2-labiate, tube split. Herbs. Many spec, abundant in 

 Am., found in Old World; fls. showy, red or blue. L. cardindlis, 

 2°-4° high, fls. scarlet. Can. to Car., W. to 111. L,. fulgens, similar, 

 but finer. Mex. Many blue-flowered spec, in U. S. L. infldia, 

 erect, 10'-15' high, medicinal. Can., U. S. L,. Gattingeri, delicate, 

 6'-20' high, fls. deep blue. Mid. Tenn. S, Downingia elegans, 

 similar, boll longer, 1-celled. 0. Cal. 



Ord. 66. Campanulaceae. — Corol. reg., campanulate, 5-merous. 

 Sta. 5. Boll 2-8-celled, cells t»-seeded. Herbs, usually milky. 29 

 gen., 540 spec. N. hemisphere, S. Af. 1. Campanula. Many fine 

 spec, cosmop. C. hederdcea, Flower of the Fottntain, delicate, 

 ivy-leaved ; fls. blue. Border of streams. West Eng. C. rotundif blia, 

 Hare-bell, Blite-bbll. Q|.. ^'-Vl' high. Fig. 144. Eur., Am. 

 C. Medium, Canterbury Bell, (2). 2°-4° high, rough, ; fls. 2' long, 

 of various colors. Eur. 2. Platycodon. Low shrubs ; fls. large, 

 broadly open, blue. Sev. spec N. Asia. 3. Specularia, Vbnus's 

 Mirror. Els. rotate, resembling a concave mirror ; purple, blue, 

 white. Herbs. Eur., Asia, Am. S.^cr/oZiato, 6'-20' high, fls. blue. 

 Common, IT. S. 



Ord. 67. Goodeniacese. — Corol. 5-merous, irreg. Sta. 5. Ova. 

 2-4-1-celled. Stig. indusiate. Drupe, akaine, boll, or utricle. Herbs, 

 Ta,re\y Shrubs. 24 gen., 200 spec Australasia chiefly ; few in S. Am. 

 1. Goodenia. 2-4-celled. Herbs or Shrubs ; Ivs. silky, fls. usually 

 yellow. Chiefly in Australia. G. repens, S. Am. 8. Brunonia 

 ausirdlis, only spec. Q|. herb, nearly stemless ; Ivs. rad. ; fls. nearly 

 reg., blue, fascicled in an involucrate hd. ; calyx with plumose seg- 

 ments. Ova. free ; fr. a 1-seeded utricle. Australia. 



Ord. 68. Stylidiaceae. — Corol. irreg., 5-merous. Sta. 2, filaments 

 gynandrous with style, forming an erect or bent column ; anthers 

 embracing stigma. Fls. spiked, racemed, or corymbose. Boll 1-2- 

 celled, oo-seeded. Herbs. Q, Q|.. 4 or 5 gen. S. hemispfiere. 1. 

 Stylidium, largest gen. Australia, E. Ind., China. 2. Forstera. 

 Australia, New Z., Fuegia. 



Aster Alliance. — Fls. reg. or irreg. ; if diclinous, usually in invo- 

 lucrate hds. Corol. 5-4-fid ; sta. 5-4, rarely 2-3. Ova. 1-celled, 1- 

 ovuled ; or if 2-3-celled, only 1 cell ovuled. Calyx-limb pappose or 0. 

 Lvs. exstip. 69. Compositae (phosphorescent). 70. Dipsacese. 71. 

 Calycer^ceae. 72. Valerianacese. 



Ord. 69. Compositae. — Fls. diclinous or § . Corol. reg. or irreg. ; 

 5-4-fid ; sta. 5-4 ; anth. usually syngenesious. Ova. 1-celled, 1-ovuled ; 

 fr. an akaine, usually crowned by the calyx-limb, which is cup-shaped, 

 toothed, or pappose. Infl. mixed (Lesson XX.). Fls. (fits.) in 

 racemose (indef) hds., on a broadened receptacle or common torus; 

 hds. usually co-flowered, rarely few- or 1-flowered; sol., or with cy- 

 mose (def.) infl- Lvs. often dissected, rarely compound. Herbs, 

 Shrubs, rarely Trees, with bitter, often milky juice. 940 gen., 9100 

 spec, nearly equally divided between Old and New Worlds ; making 

 nearly jJj of the Vegetal Kingdom ; some useful, many weeds ; all 

 interesting. 13 Tribes, in 3 Sections. Types only given. 



5* 



