422 Transactions, — Botany. 



leaves ; involucral leaves linear, obtuse, ribbed. Achenes 

 linear-clavate, 4-angled. 



Hah. North Island : Snowy places amongst the Euahine 

 Mountains, Bcv. W. Colenso, F.B.S. 



I copy the above description from Hooker, as this species 

 has not been found since its original discovery, more than 

 forty years ago. 



7. A. muscosa, n.s. 



A minute herb ; stems i-in.-iin. high ; solitary or forming 

 matted patches -lin.-lin. in greatest diameter. Leaves dense, 

 imbricating, lin.-iin. long, erect, linear, concave above, ex- 

 cessively coriaceous, truncate or retuse, with a stout marginal 

 nerve, rarely obtuse. Heads hidden amongst the apical 

 leaves, shortly pedunculate. Involucral scales 5, oblong 

 acuminate, obtuse or acute ; nerves indistinct. Florets 4 or 5 ; 

 of the disc, with 4 bristles from the base of the narrow tubular 

 corolla, w'hich is indistinctly 4-lobed ; of the ray, ovary 

 4-angled. iVchene tetragonous, shortly clavate, 4-angled, 

 with a bristle as long as the achene at each angle ; setose. 



Hab. Stewart Island : Summit of Rakiahua ; 2,300ft. 



This singular little plant is allied to A. rosulata in the 

 spreading horn-like bristles, which,, however, are much longer 

 than the short stout horns of that species. In general ap- 

 pearance it resembles a Tortilla or Bri/um. and may easily 

 pass unnoticed. At present it has only been observed in the 

 locality stated above, where it occurs in very small quantity. 

 It closely approaches the original A. cviarcjinata, Cass., from 

 the Falkland Islands, and, with the exception of Lcmna, is 

 the smallest flowering-plant in the colony. It is the only 

 species with setose achenes. 



EXPLANATION OF PLATE XXXVL 



Fig. 1. Ahrotanella muscosa, natural size. 



Fig. 2. The same magnified. 



Fig. 3. Leaves, magnified. 



Fig. 4. Capitulum, magnified. 



Fig. 5. Achene of the ray, magnified. 



Fig. 6. Acliene of the disc, magnified. 



