Buchanan. — Oil the Alpine Flora of Netv Zealand. 349 



and outer base. Corolla with a short tube, lobes 4, linear, obovate, obtuse. 

 Stamens 2 inserted within the mouth of the corolla. Anthers large on top, 

 and cleft halfway up, capsule narrow- oblong, seated in a cup-shaped disc. 

 Hab. — South Island : Mount Alta, 5,000 feet alt. — Buchanan and 

 McKay, 1881. 



Plate XXIX., fig. 2, plant nat. size; 2 a, leaf; 2 h, 4-flowered spikelet; 

 2 c, flower ; 2 d, diagram of corolla ; 2 e, sepals front and side view ; 2/, 

 flower bract. 



The tetramerous flowers and clustered arrangement of the spikelets 

 place this species also in Mitrasacme, and the very small triangular-shaped 

 leaves distinguish it from M. hookeri. The peculiar leafless-like branches 

 and inconspicuous flowers of this small alpine cause it to be easily overlooked, 

 but it is none the less interesting to botanists. Named in honour of T. F. 

 Cheeseman, F.L.S., who has added much to our knowledge of the botany of 

 New Zealand. 



Mitrasacme petriei, Buch., n.s. 



Stems prostrate, branched, branches ascending, 2-4 inches long. Leaves 

 \-\ inch long, oblong, or linear-oblong, obtuse, membraneous, sparingly 

 cilio-glandular on the margins, 1-nerved, in opposite pairs, and connate at 

 the base without stipules ; flowering branches covered on the upper f of 

 their length with closely-arranged tetramerous cilio-glandular leaf-like 

 bracts. Flowers numerous, solitary in the axils of the upper bracts. Calyx 

 deeply 4-5-cleft, lobes falcate, varying in size, linear-obtuse, and cilio- 

 glandular on the margins. Corolla with a rather long funnel-shaped tube ; 

 lobes 4, unequal, linear-oblong, acuminate, spreading. • Stamens 2, filaments 

 short, inserted within the mouth of the corolla, anthers short, cleft half way 

 up and rounded on the points. Capsule ovoid, compressed, seated in a 

 shallow cup. Seeds ovate, few, 



i/a6.— South Island: Mount Bonpland, 6,000 feet alt.— Z). Petrie, 1881. 



Plate XXX., fig. 1, plant nat. size ; la, lb, Ic, leaves ; 1 d, floret ; 

 1 e, bract, sepals, and capsule; If, diagram of sepals; Ig, position of 

 stamens ; 1 h, seed. 



The tetramerous flowers and absence of leaf stipu.les in the present plant 

 are sufficient reasons for placing it in Mitrasacme, and the large distant 

 leaves present sufficient claim as a new species. This addition to the 

 Loganial alliance in New Zealand also maintains the peculiar feature of 

 possessing only two stamens. 



Collected on Mount Bonpland, at 5,000 feet alt., by D. Petrie, in compli- 

 ment to whom it has been named. 



Raoulia rubra, Buch., n.s. 



A smaU fragrant patch plant, forming dense hemispherical balls or 

 patches on the ground or on rocks, 4-8 inches high, and 6-12 inches across. 



