630 L: Diels u. E. Pritzel. 
Bay collecta erat, nempe in collibus calcareis sublitoralibus flor. m. Nov. 
(E. Parrzer Pl. Austr. occ. 54; D. 2487). 
Helipterum tenellum Turcz. (B. III. 646). 
Flores pappum superant, non quam ille breviores. Folia involucrantia 
atque involucri apices foliacei glandulosa saepe viscida sunt. Species 
pulchra a distr. Irwin (F. v. Mëtteg, Diets) in interiora longe progreditur, 
ubi vidimus in distr. Coolgardie pr. Southern Cross abundantem in eu- 
calyptetis lutosis; pr. Mungari eisdem fere locis flor. m. Nov. exeunte 
(E. PrıtzeL Pl. Austr. occ. 79; D. 1690, 4705, 5589). 
Helipterum oppositifolium Sp. Moore in Journ. of Bot. XXXV. 
(1897) 165. 
Herba annua simplex vel parce ramosa, foliis oppositis vel nonnullis 
alternantibus membranaceis: glaucis oblongis vel oblongo-lanceolatis plerum- 
que acutis; capitulis terminalibus singulis vel laxe corymbosis longe pe- 
dunculatis; involucro late campanulato vel demum hemisphaerico, involucri 
squamis scariosis pallide rufis exterioribus minutis, mediis ovatis, interiori- 
bus lineari-oblongis scarioso-marginatis apice lamina petaloidea flava reflexa 
apice saepius fissa ipsius dimidium vix aequante ornata, achaeniis triquetris 
sericeo-villosis. 
Herba 40—25 cm alt.; folia 45-25 %X2—4 mm; involucri squamae exteriores 
Circ. 4 mm, interiores 8—40 mm, lamina petaloidea 2-—4 mm long.; achaenium 3 mm 
long.; pappus 5—6 mm long., flos 5 mm long. 
Hab. in distr. Irwin pr. Greenough River inferiorem in calcareis 
fruticosis flor. m. Sept. (D. 4237). 
Species H. hyalospermo et H. gracili affinis differt foliis numerosioribus latioribus 
alque involucri squamis apice non herbaceis. Quibus rebus ad H. strictum accedit. 
Helipterum gracile (A. Gray) Benth. (B. III. 646). 
Quam vidimus a distr. Eyre pr. Ravensthorpe ad distr. Irwin pr. 
White Peak in lutosis fl. m. Sept. et Oct. (D. 4862, 4167). 
Helipterum strictum Lindl. (B. HL 647). 
Hab. in distr. Austin pr. Carnarvon in lutosis subnitrosis flor. m. 
Aug. (E. Purrzet Pl. Austr. occ. 546, D. 3655), pr. Murrinmurrin (Gsones); 
in distr. Coolgardie a cl. Herms et Se. Moore observata est. 
Helipterum pygmaeum (DC.) Benth. var. occidentale Benth. (B. IH. 647). 
In distr, Stirling crescit pr. Warrungup in fruticetis apertis glareoso- 
lutosis fl. m. Oct. (D. 6022). 
Helipterum exiguum F. v. M. (B. HL 649). 
Hab. in distr. Irwin pr. White Peak in acacietis apertis lutosis flor. 
m. Sept. (D. 6446). 
Senecio L. (B. III. 661). 
Die Senecionoideae sind artenarm in Westaustralien und haben keine 
originellen Züge dort entwickelt. Die wenigen Erechthites und Senec, 
die dort vorkommen, sind meist über weite Strecken Australiens verbreitet 
