Petrie. — Descriptions of New Native Flowering -plants. 211 



This appears to be a well-marked species. The late Mr. Kirk referred 

 his specimens, which are in fruit and are rather stouter than Dr. Cockayne's, 

 to P. micromega Hook, f., but they are destitute of radical leaves, while the 

 cauline leaves are much larger and broader than those of P. micromega, 

 and do not extend above the middle of the stem. As I have seen only 

 dried specimens, the details of the structure of the column may be im- 

 perfectly sketched here. 



7. Poa campbellensis sp. nov. 



Species P. pusillae Berggren affinis : differt foliis numerosis erectis v. 

 suberectis conduplicatis apice obtusis ; ligulis longioribus + oblongis laceris 

 v. erosis ; spiculis paulo majoribus viridibus colore purpureo-spadiceo + 

 tinctis ; glumis florigeris subacutis basi pilis crispulis brevibus exigue 

 instructis ; paleis apice subalte bifidis ac a carinis delicate ciliatis. 



Culms very slender densely tufted, leafy below and usually clothed by 

 the sheaths of the cauline leaves to above the base of the panicle, 5-10 cm. 

 (2-4 in.) rarely 15 cm. (6 in.) high. Basal leaves much shorter than the 

 culms, erect or slightly spreading, narrow blunt-pointed, smooth, folded, 

 rather stiff ; sheaths about as long as the blades, broad, thin, loose, mem- 

 branous, striate ; ligules variable in length, shortly oblong (rarely longer 

 and narrowed upwards), thin and scarious, erose or lacerate at the tops. 

 Panicle small, 2-5-4 cm. (l-l|in.) long, narrow-ovate, of 6-9 spikelets 

 placed on rather long glabrous or slightly scabrid pedicels ; branches 

 capillary, the lower much longer. Spikelets + 7mm. (Jin.) long, ovate- 

 lanceolate, greenish, faintly stained with purplish -brown, 2-3-flowered ; 

 outer glumes slightly unequal, about two-thirds as long as the flowering- 

 glume immediately above, smooth or slightly scabrid along the keel ; the 

 lower narrow-ovate acute faintly 3-nerved, the upper broader subacute 

 strongly 3-nerved ; flowering-glumes ovate-oblong, subacute, thin, more or 

 less scarious around the tops, smooth except on the finely scabrid keel, 

 with a scanty tuft of delicate crisped hairs at the callus, 5-nerved ; the 

 two lateral nerves faint, the median nerve alone reaching the top ; palea 

 a little shorter than the flowering-glume, rather deeply bifid at the top, 

 finely ciliate along the nerves. 



Hob. — Campbell Island, and Port Boss in the Auckland Islands : B. C. 

 Aston ! (January, 1909). 



The Port Ross specimens are considerably taller than those from Camp- 

 bell Island. In my report on the Gramina in vol. ii of The Subantarctic 

 Islands of Neiv Zealand this grass was united with my Poa incrassata. 

 I am now satisfied that this treatment of the plant is incorrect. The 

 original description (Trans. N.Z. Inst., vol. 34, p. 394, 1902) and that 

 given in Mr. Cheeseman's Manual (p. 911) are therefore the correct 

 ones. Mr. Cheeseman has noted that Poa incrassata is most nearly 

 allied to Poa exigua Hook. f. The present species has its nearest ally in 

 Poa pusilla Berggren. 



