Ageratum.'] ixxviii. composite. (J. D. Hookfef.) 243 



Vae. 8. fastigiata {not of Clarke Comp. Ind. 29), leaves ovate-lanceolate glabrous, 

 panicles fastigiate, achenes scabrid and warted. A. fastigiatum, DC I. c. 111. 

 Lavenia fastigiata, Blume I. c. 905. 



Vab. 6. mgosa; leaves ovate coriaceous rugose, achenes densely warted. A. rugosum, 

 DC. in Wight Contrib. 8; Prodr. I. u. 112; Deless. lo. Sel. iv. t. 10. A. latifolium, 

 Wt. Ic. t. 1087. A. fastigiatum, Schidtz-Bip. in Herb. Hohenack. a. 612 (notof DC). 

 Lavenia rugosa, Wight in Wall. Cat. S221. — Niigherry, &c. Mts. only. 



Var. 7. reticulata ; leaves ovate sometimes a span broad often reticulate, achenes 

 smooth or sparsely warted often elongate. A. reticulatum, DC in Wight Contrib. 8 ; 

 Prodr. v. 113; Wt. Ic. t. 1088. A. viscosum, maduTense and Iteibcarpum, DC. in 

 Wight Contrib. 9; Prodr. ^. 113. A. erectum, DC I. o. Verbesina Lavenia, Linn. 

 Fl. Zeyl. Ub.—Bwrm.. Thes. Zeyl. t. 42.— South India and Cfeylon. 



8. AGERATVBK, Z^nm. 



Erect herbs or shniba. Leaves apposite or the nipper alternate. Heads 

 corymbose or panicled, homogamous. Involucre campanulate ; bracts 2-3- 

 seriate, linear, subequal ; receptacle flat or nearly so, naked or with caducous 

 scales. CordUas all tubular, equal, regular, limb 5-cleft. Ant/iers appendaged, 

 base obtuse. Style-arms elongate, obtuse. Achenes 5-angled ; pappus of 5 short 

 free or connate scales, or of 10-20 narrow unequal scales.. — ItosTEiB. Species 

 about 16, probably all American, but now distributed thiougbiout the tropics. 



1. Ai. conyzoides, X<mn.; DC. Prodr. v. 108 ; annual, 1-2 ft., bispidly 

 hairy, leaves petioled ovate cremate, hends small in dense terminal corymbs, 

 bracts striate acute, ray-fl. many pale blue or white-, achenes black, pappus 

 scales 5 awned often serrate below. Clarke Cbmp. Ind. 30 ; Wall. Cat. 3176. 

 A. cordifolium, Roxh. Fl. Ind. iii. 415 ; Wall. Cat. 3177. 



Throughout India; ascending the Himalayas to 6000 ft. — ^Distrib. All hot 

 countries. 



9. EVFATOBXUIK, X. 



Herbs shrubs or undershrubs. Leames opposite or alternate. Heads corym- 

 bose, homogamous. Involucre long or short : bracts fesv- or many-seriate, sub- 

 equal or outer shorter ; receptacle naked. CoreUas all equal, regular, tubular ; 

 tube slender; limb 5-lobed or toothed. Anthers appendaged, base obtuse. 

 Style-arms long, obtuse. Achenes trtmcate, 5-angled or -ribbed ; pappus-hairs 

 1-seriate, many, rigid, scabrid. — Distkib. About 400 species, chiefly American. 



1. E. XteevesU, Wall. Cat. 3168; DC. Prodr. v. 179; hoary-pubescent, 

 leaves simple ovate or lanceolate acuminate entire or coarsely serrate, corymbs 

 very many rounded, heads ^ in. long, invol. bracts very obtuse. Clarke Comp. 

 Ind. 32. E. longicaule, Wall.; Clarke L c. 32, not of DC. E. squamosum, 

 Don Prodr. 170. Conyza longicaulis, WaU. Cat. 3073. Mikania clematidea. 

 Wall, in DC. I. c. 191 ; Cat. 3173. 



SnuTEOPioAi, Himalaya ; fropi Simla to Bhotau alt. 2-6000 ft. exclusive of 

 Sikkim. — Distbib. China, Japan. 



Tall, erect or scandent, slender, much branched abovfi. Leaves 1-2 in,, puberulous 

 above, 3-pli-nerved ; petiole short. Heads pale, fastigiate ; invol. bracts 5-8, obtuse, 

 hoary; flowers 5-8. — This is usually called E. longicaule, of De Candolle, whose 

 description does not agree with my Indian specimens and is probably made up of 

 more than one Wallichian plant. 



2. E. cannabinum, Lmn. ; DC. Prodr. v. 180 ; pubescent or puberu- 

 lous, leaves simple or trisect lanceolate coarsely serrate, corymbs many rounded, 

 heads ^ in. long, inner invol. bracts subacute. Clarke Comp. Ind, 34. E. 

 Wallichii and heterophyllum, DC. I. c. 179, 180. E. punduanum. Wall, in DC 

 Prodr. I, c. 179 j Cat. 317b; Garke I. c. 33. E. nodifloruia, WaU. Cat. 3166 ; 



B. 2 



