70 XIII. XYRiDE^. [Xyris 



HuiLLA. — Sunny wooded places (not or scarcely damp) between 

 Lopollo and Monino, growing with species of Prolea and Gladiolus. 

 Feb. 1860. No. 2468. 



7. X. affinis Welw. ms. in herb. 



Widely cfespitose ; habit of X nivea but leaves flattened, 

 narrowly linear acute from a broader sheath ; sheaths of withered 

 leaves persistent, dark brown with brown, hairy roargins ; peduncle 

 erect slender subcompressed ; spikes few (5 or 6) flowered, ellip- 

 soidal to obovoid when young becoming subglobose with a somewhat 

 flattened top when ripe ; bracts more or less broadly bluntly ellip- 

 tical sometimes tending to obovate, 3-nerved, entire, dark brown 

 with lighter subscarious margins ; lateral sepals narrower than 

 in X. nivea, oblanceolate, keel narrowly winged for 4 the length 

 from the base and scabridulous above the base ; corolla yellow, 

 lobes obovate, stamens slightly exceeding the short deep yellow 

 2-armed pilose staminodes; anthers orange in bud ; ovary ellipsoid 

 becoming oblanceolate as it ripens ; seeds (unripe) as in X. nivea. 



Leaves 3 to 4^ in. long including sheath (1 in. or less), ^ to 4 

 line broad. Peduncles 9 to 10 in. long, ^ to 4 line broad, sheath 

 leafless, minutely apiculate, 2^ to 3 in long ; spikes 2i to 3 lines 

 long and nearly as broad. Bracts 1^ to little over 2 lines long by 

 little over 1 to nearly 2 lines broad. iSepals 2 lines by i line ; 

 anthers 1 line by scarcely h line. Fruit (unripe) 1|^ by 4 line 

 broad near the apex, which is beaked with the persistent base of 

 the style. 



Near X. nivea but distinguished by its flat leaves, yellow flowers 

 and narrower more prominentlj^ keeled lateral sepals. 



HuiLi.A.^ — Resembling A', nivra in habit but distinguished besides 

 other characters by its constantly yellow flowers, angled less tortuose 

 peduncle, and shorter flattened green not glaucous leaves. Elevated 

 damp meadows on Morro de Monino at 5000 feet. Beginning of April 

 1860. No. 2467. 



8. X. pumila Rendle sp. nov. 



Small with stiff habit, the hard woody cylindrical main stem 

 bearing several crowded regularly distichous-leaved branches; 

 persistent sheathing bases of old leaves chestnut-brown, new leaves 

 glabrous, flattened, linear, passing above into a very acute or sub- 

 aristate apex, and below into the stiff dry upwardly tapering 

 chestnut-brown sheath ; peduncles rigid, erect, terete, glabrous, 

 exceeding the leaves, spikes few- (3-) flowered, narrowly ellipsoidal 

 slightly drawn out at the base ; bracts dark chesnut-brown with 

 paler entire margin, outer exposed surface finely muriculate, 

 coriaceous, the lowest subovately elliptical with a pair of lateral 

 nerves meeting the median about ^ below the blunt apex, back 

 slightly keeled below the apex, the upper becoming elliptical to 

 suborbicvilar and very concave above with the two lateral veins 

 converging nearer the apex ; lateral sepals lanceolate, blunt, with 

 a brown dorsal keel more or less scabridulous from about ^ above 

 the base to the apex, sides paler unequal, posterior sepal orange- 

 crimson, narrowly ellipsoidal ; corolla bright yellow, anthers in 



