XYRIS. 123 
cutis, being linearly arranged, and globose, the central portion 
being more irregular. 
The peduncles are fistular in the centre ; around this, is de- 
veloped cellular tissue, cheifly of a hexangular form, on the 
cireumference of whichthere is a narrow deposit of woody 
fibre, interspersed with vascular fascicles. 
The space between this and the cuticle which is abundant- 
ly supplied with stomata, is filled with parenchyma, so dense, 
that the meats are very small. Towards the base, where the 
scapes are smallest, the centre is occupied by cellular tissue. 
Thefistular appearance is evidently owing to the increase of 
diameter, and is formed partly by the rupture of the central 
tissue, the debris of which is often visible. 
No spiral lines, and consequently no tubes ; no septa exist 
in the leaves, or peduncles. 55 
The empty spaces existing in the leaf immediately opposite 
the openings of the stomata, are very apparent; there is the 
. same deficiency of spiral vessels. 
: Хүвїз. 
1. Xyris sp. Pl. CLXI. C. Khasyah Herb. 495. 
2. Xyris sp. 
Axis 5-6 uncialis simplex abbreviata, fol. basi dilatatis vagi- 
nantibusque linearibus acutus spe tortis, scapus radicalis, 
e sinu folii ortus, sub anceps, 2-3 tortus, apice capitulum 
florum gerens. racteze scariosæ ovales flores suffulti- 
entes, brunneze, marginibus aureo-nitidis, nervo medio apicem 
versus viride, anticze extimze vacuze angustiores. Bractez in- 
teriores 3, 2 laterales naviculares, membranaceze, albidze, tertia 
antica difformis, late obovate, unguiculata cucullata. Perian- 
thium coloratum aureum, 3 sepala, sepalis unguibus planis 
distinctis, basibus limborum interdum- convexa, mediantibus 
membranis filiformibus, apicibus dilatatis, fasciculos pilorum 
stuposos gerent, interjunctis. Stam. 3, epipetalo, petalis oppo- 
sita, filam. breviss. limbi petalorum basi inserti. Pet. limbo. 
oblonga subtruncato-denticulata. Anth. bilocul. cellulose 
