CoLENSO. — On Phaeuogams. 317 



bright-yellow, spreading (but revolute in age), d-veined ; the 

 tube exceedingly slender, roughish subscaberulous. Disk- 

 florets numerous, darker yellow, scarcely exceeding the invo- 

 lucre, the tube infundibuliforni subangular, 5-nerved ; nerves, 

 dark-coloured ; style long, hairy, lobes large, stout, much 

 arched, tips truncate and finely penicillate ; anthers tailed, 

 obtuse, slightly and sparingly roughish subtuberculate, en- 

 larged (tumid) at base. Achenes pale linear subterete — of 

 raji glabrous, truncate at both ends, slightly curved and more 

 cylindrical than those of disk ; of dish, hairy, striate, slightly 

 tapering, thickest at top. Pappus white — of dish numerous, 

 straight, barbed, acute, shorter than floret ; of ray few (4-6) 

 smaller Hexuous and weaker. Keceptacle subhemispherical, 

 alveolate, the ridges minutely toothed. 



Hah. In gullies, Kaweka Mountain -range. County of 

 Hawke's Bay ; 1892 : Mr. F. W. C. Sturm. 



Obs. I. A fine-looking plant, having affinity v^-ith S. lati- 

 folius, Hook, fil., though differing in several important 

 characters ; and in its two forms of achenes, etc., with 

 S. jacobcea, Linn., a British and European species, which 

 evidently belongs to the same natural section. 



II. I have received some large and good specimens of this 

 plant from its kind discoverer, but not a complete plant, so I 

 do not know its root-stock, neither if it is much branched at 

 the root ; I have, however, a fine young plant in my garden. 



2. S. arcolatns, sp. nov. 



Plant herbaceous, erect 15in.-18in. high(?), glandular, 

 hairy, with more or less of white scurf. Main stems 12in.- 

 14in. long, slender, striate, having 4-5 distant branches at 

 top, each with a long leaf at base. Leaves (cauline) few, 

 distant about 2in. apart on main stems, membranous, dark- 

 green, 2in.-3in. long, subobovate in outline, irregularly and 

 deeply pinnatifid, narrowed into a petiole, sessile and stem- 

 clasping, base much dilated and lobed, auricles toothed, lobes 

 few long narrow acuminate, margins thickened and distantly 

 toothed ; teeth indurated, black ; veinlets numerous, closely 

 and compoundly anastomosing. Flower-heads rather small, 

 in a loose, spreading, subcorymbose panicle ; subpanicles 3in.- 

 4in. long, very slender, dichotomous, with a single long leaf at 

 bases ; peduncles about 2in. long, filiform, each bearing 6-10 

 heads on capillary pedicels 3-4 lines long. Involucre cylin- 

 drical 4-lines long, a little shorter than fiorets and pappus, 

 green, scabrid, about 15 linear acuminate bracts, tips acute, 

 irregular in width, with white membranous margins, 1-2 

 nerved; nerves pale, prominent, with a few long, narrow, 

 scattered bracteoles below. Florets very slender, tubes capil- 

 lar}' — of ray, few, sub 12, ligula yellow, very small, much 



