THE FLORA OF THE NORTHERN TERRITORY. -10 



3. 0. Ferre.sii, F. v. M. (Aster Ferresii, F. v. M.).— Haast's Bluff, G. F. 

 Hill (186), 17/5'1911. 



Recorded. Brindlevs Bluff, near Macdonnell Ranges, M'Douall Stuart's 

 Expedition. 



4. 0. Stuartii. F. v. M. (Aster Stuartii, F. v. M.).— .35 miles N.W. of Camp 

 II., G. F. Hill (256), 7 '6 '1911. 



9. BLUMEA, DC, 1833. 



(Doellia, Sch., Is43 ; Placus, Lour., 1790.) 



Flower-heads all distinctly pedunculate. 



Usually not exceeding 1 ft., pubescent or villous, not viscid. Stem- 

 leaves sessile and stem-clasping, mostly lanceolate. Peduncles 

 rather long. — 4. B. integrifolia. 

 Small. Leaves chiefly radical. Stem-leaves few, small, ovate. 

 Peduncles long and filiform. — 2. B. diffusa. 

 Flower-heads, at least the upper ones, sessile and clustered. 



Leaves lanceolate, oblong or obovate-oblong, the upper ones sessile. 

 Involucre about 4 lines long. — 3. B. hieracifolia. 

 Involucre under 3 lines long. — 1. B. Cunninghamii. 

 Almost all the leaves petiolate and broadly obovate. 

 Involucre 2 to 3 lines long. — 5. B. lacera. 



J. B. Cunninghamii, DC — Lower MacArthur River, G. F. Hill (680), 

 8, 11/1911. Appears to answer to B. Cunninghamii, DC, but leaves (on stem 

 of plant) are all sessile, though on young shoots (of same species) they are .shortly 

 pedicellate. 



Recorded. Careening and Brunswick Bays, N.W. Coast. A. Cumiingham ; 

 Point Pearce, Victoria River, F. v. Mueller ; GuU of Carpentaria, R. Brown. 



2. B. diffusa, E. Br. — Islands of the GuK of Carpentaria, R. Brown ; 

 towards M'Adam Range, F. v. Mueller. 



3. B. hieracifolia, DC. — Between Providence Hill and MAdam Range, 

 F. V. Mueller. 



4. B. integrifolia, DC. — Roper River, Cullen and Driffield Creeks, CTihuth 

 and Spencer, July-August, 1911. 



Recorded. Port Keats, N.W. Coast, A Cunningham ; ^'ictoria River, 

 M'Adam Range, Roper River, F. v. Mueller. 



5. B. lacera, DC. — Edith Creek, Gihuth and Spencer, July- August. 1911. 

 Recorded. Victoria River, F. v. Mueller. 



B. glandulosa, DC; (in National Herbarium Census) and B. Solandri, 

 Sp. le M.; (in Journ. of Bot. XLIIL, 1905). — Recorded from North Australia. 



10. PLUCHEA, Cass., 1817. 



(Berthelotia, DC, 1836 ; Ejo-ea, F. v. M., 1852 ; Gymnostylis, Rafin., 

 1818 ; (Jynema, Rafin., 1817 ; Karelinia, Less., 1834 ; Leptogyne, Ell., 1824 ; 

 Pluechea, Zoll. & Mor., 1854 ; Spiropodium, F. v. M., 1858 ; Stvlimmus, 

 Rafin., 1819 ; Tecmarsis, DC, 1836.) 



Section I. Pluchea. — Flower-heads ovoid. Involucral bracts lanceolate 

 or the outer ones ovate. 



Shrub of 3 to 4 ft. Leaves obovate. Flower-heads in dense terminal 

 corymbs 2 to 3 in. diameter. — 2. P. indica. 



Herbs or undershrubs of 1 to 2 ft. Flower-heads in loose leafy corymbose 

 panicles, solitary or in small clusters on the branches. — 3. P. tetranthera. 



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