COMPOSITE. 77 



164. CHRYSACTINIA. Ray-flowers conspicuous, with linear ligules. Disk-flowers nu- 

 merous; their corolla narrow and 5-toothed, and style-branches tipped witli short obiu>e ,, r 

 conical appendages. Involucre of 10 or more short bracts. Akenes short linear, not atten 

 uate upward. 1'lowers all yellow. 



H -f- Pappus of distinct bristles and distinct palete : bracts of the many-flowered involucre 

 distinct. 



165. NICOLLETIA. Involucre oblong or cylindraceous, of 8 to 12 tliinnish bracts, ne.-n-lv 

 naked at base. Eeceptacle quite naked. Disk-corollas narrow-tubular, 5-toothed. St\le- 

 branches tipped with long filiform-subulate appendages. Akenes filiform-linear, \, iih taper- 

 ing base. Pappus double; outer of indefinitely numerous capillarv bristles like those of 

 Pvrophyllum ; inner of 5 lanceolate long hyaline palenc, with costa exenrrent, inlo a x-abrous 

 awn. 



H -i -i Pappus either wholly paleaceous, or some or all of the paleic bearing or lar 

 resolved into awns or capillary bristles: bracts of the involucre n'amophvllons or some- 

 times distinct: receptacle variously fimbrillate, alveolate-dentate, or more sirictly naked. 



166. DYSODIA. Pappus multisetose-polyadelphous, i. e. all or most of the 10 or more 

 paleoe resolved, except a basal portion, into several (9 or more) or indefinitely numerous 

 capillarv but rather stiff bristles. Involucre hemispherical or campanulate, usuallv calvcu- 

 late with a series of loose accessory bracts, the proper bracts generally gamnphyllous at ha-e. 

 rarely quite separate, rarely united to near the summit. Style-appendages somctimo >len 

 sometimes an abrupt apiculation or short obtuse cone. 



167. HYMENATHERUM. Pappus of several or numerous pale.-e, either 1-5 aristate or 

 pointed, or partly resolved into as many bristles, or some or all of them entire :,nd evi n 

 truncate (rarely even concreted). Involucre campanulate, cupulately gamophyllous high up, 

 with or without some loose accessory bracts. Style-branches truncate or very obtuse, some- 

 times tipped with a minute apiculation. Akenes mostly terete, and striate. 



168. TAGETES. Paleo? of the pappus 3 to 6, firm, commonly unequal, entire, not seiiferoiis, 

 but one or more of them frequently subulate-pointed or aristiform. Involucre naked al base, 

 gamophyllous nearly throughout into an oblong or more elongated cup or tube. Akenes 

 compressed or angulate, hardly striate. Herbs. 



* * PECTIDE;E. Stvle of hermaphrodite flowers slender, hispidulous, terminated by two 

 very short obtuse and inappendiculate stigmatic branches. 



169. PECTIS. Heads radiate, several-many-flowered. Involucre naked at base, or nearly 

 so, cylindrical or campanulate, of few or several equal carinate brans in a sin-l>- series. 

 Receptacle small, naked. Disk-corollas 5-lobed, one or two sinuses ol'ten deeper, thus becom- 

 ing bilabiate. Akenes linear, terete or angled. Pappus of few or numerous bristles or a\\ us, 

 sometimes paleaceous-dilated at base, or of paleae, or reduced to paleaceous-coroniform, 

 rarely obsolete. Opposite-leaved herbs. 



TRIBE VII. ANTHEMIDE^E. Heads homogamous with flowers all tubular and her- 

 maphrodite, or more commonly heterogamous, with the female (lowers H-ulate and 

 radiate, or sometimes with corolla reduced to a tube or obsolete. Receptacle either 

 naked or with some chaffy bracts. Bracts of the involucre imbricated, wholly or 

 partly dry and scarious or scale-like, not foliaceous, seldom herbaceous. 

 without tails at base. Style-branches of the hermaphrodite flowers truncate, and some- 

 times with obscure conical tips. Akenes usually small and short, with no pappus or a 

 paleaceouscrown, or a circle of squameUse. Strong-scented or bitter-aromatic herbs or 

 undershrubs, the greater part of the Old World ; with alternate leaves : distinguishe< 

 from the preceding tribe by the scarious imbricated involucre: from the . 

 by the truncate style-tips, &c. The first genus would go with //, / nioidece, except for 

 the paleoe of the receptacle. 

 * Receptacle paleaceous, i.e. with chaffy braets subtending some or all the disk-flowers: 



heads radiate, or the rays wanting in certain species. 

 +- Anomalous, with involucre (of comparatively few and broad thin bracts) and aspect of 



Hymenopappus. 



