168 THE JOURNAL OF BOTANY 



ripe achene ; pappus of five capillary bristles nearly as long as 

 the corolla, plumose except towards the base, where they are 

 dilated and united in a ring with one or two teeth between each 

 two bristles ; achene almost cylindrical but tapering slightly to 

 base, minutely papillose. 



Globe Hill Station and Minderoo, Ashburton Eiver, October. 



The singular appendage on the tip of the leaf of this plant 

 appears to be homologous with the coloured lamina of the in- 

 volucral bracts, forming the ray in so many of the GnaphaliccE, 

 although at first sight it looked as if formed of inspissated resinous 

 secretion from the horny tip of the leaf. Its presence on the 

 small leafy bracts of the general involucre seems, however, to 

 prove the transition of leaf to floral bract. 



The affinity of this species is evidently with A. tomentosus 

 Wendl, particularly in the shape and colour of the spikes, and in 

 the form of the pappus. 



Helipterum cirratum, n. sp. Planta humilis, caulibus as- 

 cendentibus simplicibus vel rari-ramosis, ramis moiiocephalis, foliis 

 amplexicaulibus lineari-lanceolatis obtuse acutis ut caulis indu- 

 mento lanoso obtectis, involucri hemisphserici phyllis ext. ovato- 

 lanceolatis scariosis radiantibus, flosculis exsertis, pappi setis 

 10 satis elongatis inferne dilatatis ima basi connatis, achaeniis 

 villosis. 



Dwarf plant with one or more stems, 4 cm. or less in length, 

 ascending from the base, simple or once branched near the top, 

 a single head of flowers terminating each branch shortly above the 

 uppermost leaves. Leaves linear-lanceolate, erect, along with the 

 stems enveloped in fine wool, subacute, sessile and stem-clasping, 

 2-5 cm. or less in length, some of the lower reaching but not 

 exceeding the flower-heads, which are hemispherical and spread 

 to a diameter of 1*5 cm. Outer involucral bracts thin, scarious, 

 and shining, with a slight brownish tinge, ovate-lanceolate, the 

 inner on short opaque thinly w^oolly claws, their laminas lanceolate, 

 subacute, fluted, pure white, up to 8 mm. long, the innermost 

 somewhat shorter than the intermediate. Florets exceeding the 

 involucre ; pappus nearly as long, composed of ten bristles shortly 

 united at base, each broad and flat below but gradually narrowed 

 to the summit, shortly plumose from the base, the cilia at the 

 top much longer, somewhat tufted and more spreading; achenes 

 densely covered with long silky hairs. 



On flat between Globe Hill and Uaroo Stations, Ashburton 

 Eiver, October. 



This plant, which was desiccated and brittle when found, 

 belongs to Sec. Etihelipterum of the genus, and its nearest affinity 

 is with H. Pyrethrum Benth., having the same, though longer, 

 dilated pappus, and showing a general similarity in the flower- 

 heads. It may be mentioned, by the way, that H. Pyrethrum, as 

 found about the Lower Swan Eiver, has a distinctly fistulose 

 stem, readily noticed in the fresh state, a characteristic that does 

 not appear to be noted in any description of the plant. 



