78. COMPOSIT.E. [10. Blumea. 



3. L. aurita, Schultz-Bip. 



A coarse strongly scented (somewhat like turpentine) grey-gTeeu 

 villous and glandular herb 2-3 ft. high, often much branched from 

 the large tap root. Stems well clothed with deeply lobed or pinnatifid 

 sessile leaves l"o-2'5'' long with the basal lobes shortly decurrent on 

 the stem. Heads ovoid ■3--- 5" long and broad, on peduncles 1-2" long, 

 in sub-racemes and corymbs at the ends of the upper branchlets. 

 Corolla and anthers purple. 



Waste places. Singbliutu ! Maubhum, Camp. ! Fl.. Fr. Jan. -March. 



Stems with usually few lateral branches but corymbosel.y branched at the 

 summit. Leaf-lobes toothed, villous both sides and with short gland-tipped hairs. 

 Outer involucre bracts linear si)reading- and recurved, villous, inner straight often 

 with purplish sub-spinulose tips. The antliers have short tails but tails of adjacent 

 anthers connate. Stjde pubescent, arms very short obtuse. Cj'psele hairy. 

 Pappus long white persistent. 



10. BLUMEA, DC. 



Herbs with alternate leaves and small or m.s. heads of yelloAvish 

 rarely purple or white florets. Heads not rayed. Involucre ovoid or 

 campanulate or conical of very narrow Ijracts imbricate in several 

 series, outer smaller. Receptacle fiat or convex glabrous or pubes- 

 cent. Outer florets numerous, female, filiform with corolla very 

 minutely 2-3-toothed, inner florets 2-sexual or functionally 1-sexual 

 narrowly tubular-funnel-shaped, 5 toothed. Anther bases with 

 slender tails or, if anthers are non-polliniferous then often ecaudate 

 (all ecaxidate in B. fiava), tips often empty membranous obtuse or 

 truncate, pollen spinulose. Fls. usually proterandrous in perfect 

 flowers. Style finally exserted with short filiform or linear- subulate, 

 obtuse arms without conical tip, minutely papillose. Cypseles small 

 subterete, angled or ribbed. Pappus scanty and often caducous with 

 the hairs microscopically hairy, sometimes a very minute scarious 

 ring in addition to the hairs. 



Some of the species are almost impossible to strictly define and single key 

 characters can only serve as a rough guide. It is believed that many of the forms 

 are hybrids. 

 I. Decumbent or with many branches spreading from the root. 

 Leaves not lobed : — 

 Heads solitary. L. half amplexicaul entire or coarsely 



toothed 1. amplecteus. 



Heads corymbose, rarely sub-solitary. L. sessile, spinulosely 



toothed 2. oxi/odonta. 



II. Erect. Heads clustered or panicled : — 



A. Heads sessile or nearly so, single and in distinct clusters 



along the stem and branches and fascicled at their ends : — 

 Stems white-woolly. Heads lemon-yellow with j'ellowish 



bracts 3. HaMiltoni. 



Hairy or glabrescent. Heads sessile, involucre j^urple, 



tiorets orange yellow ........ -i. glomerafa. 



Glandular-pubescent. Stems purple. Heads pedicelled, 



chiefly terminal, florets yellow 5. atiopurpurea. 



B. Heads not clustered or, if clustered, then clusters very 



numerous and panicled (exc. one variety of virens), never 



lemon yellow. Anthers of polleniferous fls. caudate : — 



1. Florets purple or the outer white, hds. not over "2" by 



"1", in dense panicles. L. simply toothed, not lobed . G. Wightiana. 



31 467 



