72 COMPOSITE. 



Subtribe IV. Helenie^. {Baerim & EuhelcniccE, Benth, & Hook., excl. gen.) In- 

 volucre hardly at all imbricated ; its bracts when broad nearly equal or in a single 

 series. Ligules not persistent. Disk-flowers numerous e.'icept in Schkuhria, with 5 

 or rarely 4 teeth or lobes. Akenes few-nerved or angled, or more numerously striate- 

 angled only when turbinate or pyritbrm. No oil-glands. {Raillardella, 190, might 

 be sought here.) 



# Anomalous: akenes (as iu Periti/lem) flat-compressed, with no lateral nerves, the callous 

 or nerved margins decsely ciliate-fringed : rays fertile or none : disk-corolla ■» ith dilated 

 limb : style-tips truncate-capitate, with or without a slight cusp. 



137. EATONELLA. Involucre of 5 to '8 oval or oblong obtuse and distinct bracts. Eecep- 

 tacle hardly convex. Disk-corollas short. Akenes callous-margined, ciliate with dense very 

 long villosity, outermost ohcompressed. Aspect of EriophijHum. 



137a. CROCKERIA. Involucre and other characters of Las</i«i/a § /fo/or/ymne. Akenes 

 obovate-oval, very densely fringed with clavate glandular hairs. — See p. 445. 



# # Baeria type : receptacle conical, mostly high-conical and acute, beset after the akenes 

 have fallen by projecting points (as if pedicels, on which they' were inserted) : bracts of 

 the involucre herbaceous, iu one or rarely two series and commonly broad, sometimes 

 cupulate-connate : female flowers ligulate, or sometimes wanting : akenes narrow and 

 from oblong (or in one ili'iKiinjiiii somewhat obovate) to linear, usuiiUy tapering to the 

 base, few-nerved and angled or nerveless, not caUous-margined : herbage not impressed- 

 punctate nor resinous-atomiferous. 



■i— Involucre (almost always) gamophyllous and simple, hemispherical or campanulate : 

 disk-corollas with rather slender tube and dilated throat or limb : anther-tips ovate or 

 oblong : style-tips capitate-truncate or obtuse. 

 143. ERIOPHYLLUM. Akenes slender, and usually with a paleaceous pappus. 



138. MONOLOPIA. Head conspicuously radiate, with broad ligules: inner disk-floners 

 often infertile. Receptacle high-conical. Involucre broad, of one or rarely two series of 

 bracts, which are normally connate by tlieir edges into a several-toothed or lobed hemispheri- 

 cal cup, but sometimes distinct even to the base. Lobes of dislc-coroUas somewhat bearded. 

 Akenes obovate or obovate-oblong, quadrangular-compressed or the outer obcompre.ssed- 

 triangular, sometimes acute-margined, with small terminal areola, and no j^appus. Ploccose- 

 tomentose and alternate-leaved annuals. 



139. L ASTHENIA. Head radiate, or discoid by diminution of the ligules: disk-flowers 

 all fertile. In\olucre a single series of bracts connate by their edges into a, 5-15-tootlied 

 glabrous green cup. Di^k-c^rollas 4-5-lobed. iVkenes linear or narrowly oblong, coni- 

 jn'essed, slightly 2-3-nerved or nerveless, nearly marginless, scabro-pubernlent or glalu'ons. 

 Pappus of 5 to 10 firm and subulate-tipped paleie, or noue. Glabrous aud smooth annuals, 

 with opposite entire sessile lea^■cs 



-I— -1— Involucre of few or several distinct and thinnish herbaceous bracts in a single series, 

 loose, open at maturity of fruit, not rarely deciduous: disk-corollas with slender tulie 

 wliicli equals or exceeds in length the camii:innlate or cyatliiform 5-b)bed (rarely 4-lobed) 

 limb : leaves all opposite, sometimes connate at their sessile bases. 



140. BURRIELIA. Head few-flowered, discoid, the 1 tn 3 female flowers with ligule 

 wanting or shorter than the style. Involucre cylindraceous, of 3 or 4 narrow ly oblong plane 

 bracts, bcicptacle slender-subulate. Style-tips short-ovate, r.ather ol)tuse. Akenes slen- 

 der, fusiform-linear, flattish. I'appus of 2 tu 4 long attenuate-subulate ]ialeie. 



141. BAERIA. Head mostly mairy-flowered, radiate: rays 5 lo 15, conspicuous. Br.icts 

 of the campanulate or hemis|)herical involucre as many, o\ ate or olilong, plane or becoming 

 soraewliat carinate at middle, at least below, liocoptacle subulate to high-conical. Style- 

 tips from truncate-capitate, with or without a central apicuhition, to ovate and sometimes 

 with a cuspidate appendage. Akenes clavate-linear to linear-cuncate. Pappus a few palea' 

 or pale.areous awns, or both, often wanting. 



# -* * Bahiatype: receptacle flat or CDjivex (nirely obtusely ccmiial) : akenes from linear 

 to ob])yrainidal, rarely 5-augled, occasionally with intermediate nerves : flowers (witli few 

 excejitions) all fertile. 



