﻿224 Trcm sactionp. — Botany. 



III.— BOTANY. 



Akt. XXXIX. — On some Neio Species of New Zealand Plants. 

 By John Buchanan, of the Geological Survey Department. 



(With Illustrations.) 



lEeacl 'before tlie Wellington Philosophical Society, 6th July, 1871.] 



Ilaloragis aggregata, Buchanan, n. sp. 



A SLENDER much branched herb, procumbent at the base. Branches very 

 narrow, erect, 4 angled, 4-5 inches high, scabrid. Leaves ^—^ inch long, 

 opposite, distant, ovate oblong, acute, tapering into a short petiole, with 3-5 

 deep cut pungent serratures on each side, margin thickened and scabrid, both 

 surfaces hispid with scattered appressed hairs, scarcely membranous. Flowers 

 hermaplirodite, pedicellate, in pairs with bracteate leaflets, aggregated at the 

 ends of the branches into dense round heads or corymbs, by the union of 

 three or more heads ; sepals 4, triangular acute ; petals 4, hood shaped, with 

 a few scattered long hairs, reddish, rather longer than the sepals ; stamens 8, 

 anthers linear, filaments equal in length to the anthers, exserted between the 

 calyx lobes with the 4 large plumose stigmas, and persistent after the fall of 

 the petals. Fruit 1 line long, 4 angled, with 4 intermediate costa, smooth 

 and shining, 4 celled, 4 seeded, 



This addition to an already large southern genus differs much from any of 

 the described species either in New Zealand or Australia. The specific name 

 has been chosen to indicate the most prominent character, the aggregation of 

 the heads. 



Collected by H. H. Travers, near Lake Guyon, Nelson Province, Febru.ary, 

 1871. 



Plate XIII, — -Fig. 1. V\2a\t natural size. 2. Fruit with persistent stamens 

 and stigmas. 3, Stamen. 4. ^Plumose stigma. 5. Hood-shaped petal. 

 6. Section of fruit with 4 suspended seeds. 7. Leaf with thickened margin 

 and appressed hairs. 8. Seed, All magnified. 



Danthonia Raoulii, Steud. 

 a. australis, Buchanan, n. suh-sp. 

 A small rigid grass growing in dense tussocks; culms 8-16 inches long, 



