Kirk. — On the Genus Abrotanella. 421 



The largest species. The achenes with 4 ribs do not ap- 

 pear to have been noticed by Sir Joseph Hooker, probably 

 owing to his visit having been made at an early period of the 

 season. The cellular structure of the ribs of the achenes, and 

 of the veins of the involucral scales, becomes greatly obscured 

 after maturation. 



4. A. rosulata, Hook, f., Handbk. N.Z. Fl., 139. Ceratella 



rosulata, Hook, f., Fl. Antarct., i., 25, t. 18. 



A small tufted herb, with prostrate or suberect stems, 

 ^in.-l^in. high. Leaves Jin.-^in. long, narrow-ovate or 

 lanceolate, acute or subacute, patent, tips recurved, concave 

 above, very coriaceous, 5-nerved beneath, dense. Heads 3-6; 

 terminal partially hidden by the apical leaves. Involucral 

 leaves 8-10, linear-oblong, 3-nerved ; disc-florets about 4, 

 corolla 4-angled, swollen at the base ; ray-florets, corolla 

 tubular, with 4 spreading teeth, Achene tetragonous, 4-ribbed, 

 narrowed below ; each rib produced upwards into a short 

 horn. 



Hab. Campbell Island ; rare and local ; 1,000ft. 



A harsh, rigid plant, easily distinguished from all other 

 species by its peculiar habit, and by the 4-horned achenes. 



5. A. inconspicua, Hook, f., Handbk. N.Z. Fl., 140. 



A moss-like plant with naked stems ^in.-2in. high, densely 

 leafy. Leaves Jin.-^in. long, spreading or ascending, sub- 

 ulate or linear-oblong, concave at the base, subacute, rigid 

 and rather flat when dry. Head solitary, almost hidden by 

 the upper leaves ; involucral scales linear-oblong, 3-nerved, 

 obtuse. Florets 15-20, crowded; of the disc, tubular, deeply 

 4-cleft ; of the ray, with 4 spreading narrow lobes. Achenes 

 linear-clavate, with 4 prominent ribs. 



Hab. South Island : Otago, Mount Alta, J. Buchanan ! 

 Ben Lomond, Dunstan Eange, Mount Pisa, D. Fctrie ! 

 5,000ft.-6,000ft. 



Mr. Petrie's specimens from Mount Pisa are very robust, 

 and contrast strongly with the original specimens collected 

 by Mr. Buchanan, which are less than ^in. high. When dry 

 the leaves appear to be partially flattened, with a strong 

 marginal nerve which is scarcely observable in fresh speci- 

 mens. 



6. A. pusilla, Hook, f., Handbk. N.Z. FL, 139. Trineuron 

 pusillum, Hook, f., Fl. N.Z., i., 130. 



A slender wiry species. Stems lin. long, puberulous, 

 emitting long fibrous roots. Leaves ^in.-|^in. long, narrow- 

 linear, acute, flat above with a prominent midrib below. 

 Heads solitary, shortly pedunculate, sunk amongst the upper 



