[Vor. 1 
406 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Specimen examined: 
Texas: vicinity of Rio Hondo, Cameron County, September, 
1918, Harley P. Chandler, 7059 (Mo. Bot. Gard. Herb.), 
TYPE. 
This species belongs to the subgenus Hesperanthes according 
to Baker's treatment of this group (Jour. Linn. Soc. Bot. 15: 
253-363. 1876); it is apparently most nearly related to А. 
stenocarpum Baker, а co-type of which is in the herbarium of 
the Missouri Botanical Garden, from which it is readily distin- 
guished by the broader leaves, entire leaf-margins, the presence 
of anastomosing cross-veins, and by the leafy scape and yellow 
flowers. 
Zephyranthes chrysantha Greenman & Thompson, sp. nov. 
Bulbus subglobosus 2-2.5 em. diametro tunicis brunneo- 
nigrescentibus vestitus, collo 3-5 em. longo 6-8 mm. diametro; 
foliis 2-4 sub anthesi evolutis linearibus 2.5-4.5 dm. longis 2-3 
mm. latis glabris; scapis 2-3 dm. altis glabris; spatha mem- 
branacea 2.5-3.5 ст. longa inferne tubulosa, tubo 1-1.5 em. 
longo, lobo unilaterali lanceolato 1.5-2 cm. longo; pedicellis 
2.5-3.5 ст. longis gracilibus; perianthio infundibuliformi 3-3.5 
em. longo flavo 6-lobato, tubo cylindraceo circiter 5 mm. longo, 
lobis oblanceolatis 3-3.2 ст. longis 5-12 mm. latis acutis 
staminibus ad apices tubi perianthii insertis segmentis perian- 
thii duplo brevioribus; stylo brevitrilobato staminibus subæ- 
quantibus; capsula depresso-globosa 10-12 mm. longitudine et 
diametro, seminibus numerosis irregulariter compressis 5-6 mm. 
longis 2-5 mm. latis atratis et sæpe nitidis. 
Specimen examined: 
Texas: Rio Hondo, Cameron County, September, 1913, Harley 
P. Chandler, 7056 (Mo. Bot. Gard. Herb.), түре. 
The species here characterized is allied to Z. Eggersiana Urb., 
particularly in the size and color of the flowers, but differs in 
having more numerous and broader leaves, shorter perianth- 
tube and longer spathes. 
Sisyrinchium angustissimum (Rob. & Greenm.) Greenman & 
Thompson, comb. nov. Plate 24. 
S. alatum Hook. var.? angustissimum Rob. & Greenm. Am. 
Jour. Sci. 50: 166. 1895. 
Radices carnoso-fibrosi fasciculati; caulibus erectis strictis vel 
