68 REPORT ON TWO BOTANICAL COLLECTIONS FROM 



Tillandsia bhodocincta, Baker, in Journ. Bot. xxvi. (1888), p. 143, & Handb. Brom. 

 p. 178 ; Mez, in DC. Monog. Phan. ix. p. 791. Tillandsia sp.. Baker, in Trans. Linn. 

 Soc. Ser. II. Bot. ii. (1887), p. 285. 

 Summit of Mount Roraima, McConnell fy Quelch, 671. — Endemic. 



IRIDACE^]. 



Sisyrhinchium alatum, Hooker, Icones Plant, t. 219, var. 

 Kotinga Valley, McConnell Sf Quelch, 139. 



LILIACE.E. 



Nietneria corymbosa, Klotzsch, in Pv. Scbomb. Reisen in Brit.-Guiana, iii. p. 1066 ; im 

 Thurn & Oliver, in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), pp. 269, 285. 

 Upper slopes of Mount Rorairna, McConnell 8f Quelch, 12, 36, 328. Summit of Mount 

 Roraima, McConnell 8f Quelch, 83, 656. — Apparently endemic to the region. 



Tofieldia Sciiomburgkiana, Oliver, in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 285, 

 t. 49. f. A. 



Isidrogahis guianensis, Klotzsch, in R. Scbomb. Reisen in Brit.-Guiana, iii. p. 1065, name only. 



Upper slopes and summit of Mount Roraima, McConnell Sr Quelch, 93, 326, 657 ; 

 Schomburgk. — Endemic. 



XYRLDACEJi 



Xyris Seubertii, Nilss. in K. Svensk Akad. Handl. xxiv. (1892), No. xiv. p. 51, t. 4. 

 f. 1. 

 Upper slopes of Mount Roraima, McConnell 8f Quelch, 41. — The locality in which 

 Schomburgk collected this plant is unknown to me, and the leaves of his specimens are 

 much smaller than those of the specimens collected by McConnell & Quelch. 



Xyris concinna, N. E. Brown, sp. n. Planta 3-6 poll, alta, perennis, glabra. Caudex 



J- 1 poll, longus. Folia disticha, l-2f poll, longa, anguste linearia, acuta. Pedun- 



culus subteres, uno margine prominente, basi vagina apice breviter foliata 



instructus. Spica ovoidea. Bractese oblongse vel ellipticae, obtusae, castaneae, late 



albo-marginatse, laceratae, glabrae. Sepala lateralia lineari-lanceolata, acuta, carinata, 



glabra, carina integra vel ad medium minutissime scabrida. Petala elliptica, obtusa, 



integra, lutea. Staminodia bibrachiata, brachiis penicillatis luteis. 



Perennial. Caudex \-\ in. (or more ?) long, \ lin. thick, naked below the leaves, 



emitting fibrous roots. Leaves distichous, l-2f in. long, ^-f lin. broad, linear, acute, 



abruptly dilated into a short, broad, bright brown, clasping base, not twisted, glabrous. 



Peduncles 1-6 to a stem, 2|-5^ in. long, J-J lin. thick, subterete, with a raised line 



along one side, glabrous ; their basal sheaths f-lf in. long, produced at the apex into a 



short compressed or leafy point, keeled, glabrous, often minutely ciliate along the keel or 



at its apex. Spikes 2i-3i lin. long, ovoid, obtuse. Bracts 1|-2| lin. long, 1-li lin. 



