1914) 
GREENMAN AND THOMPSON— FLOWERING PLANTS 407 
subflexuosis 2.5-9 dm. altis multo-ramosis angustissime ancipiti- 
alatis foliosis glabris vel obscure hirtello-puberulentis basi 
reliquiis brunneis fibrosis squamarum et foliorum primorum 
obtecto; foliis radicalibus linearibus gramineis usque ad 4.5 dm. 
longis 1-4 (rarius 6) mm. latis crebrenerviis glabris vel margin- 
ibus hirtellis, eis caulinis conformibus sed sursum gradatim 
reductis; spatha diphylla, bracteis foliiformibus 1.5-2 cm. longis 
glabris marginibus plus minusve purpurascentibus, pedicellis 
2-4 ex eadem spatha 1.5-2.7 cm. longis gracilibus glabris; perian- 
thio profunde 6-partito verisimiliter flavo, lobis ovato-ellipticis 
acutis vel emarginatis et submucronatis 5-7-nerviis; ovario 
oblongo-obovato juventate sepe pubescenti glabrato; capsula 
matura oblonga 5-10 mm. longa 4-6 mm. diametro glabra, 
seminibus subglobosis circiter 1.5 mm. diametro in sicco nigres- 
centi. 
Specimens examined: 
Mexico: State of Oaxaca, Sierra de San Felipe, altitude 2895 
m., 22 June and 29 August, 1894, C. G. Pringle, 4703 (Mo. 
Bot. Gard. Herb.), со-түреЕ; Sierra de San Felipe, altitude 
8048 m., August-September, 1894, Charles L. Smith, 758 
(Mo. Bot. Gard. Herb.). State of Morelos, lava beds 
above Cuernavaca, altitude 2590 m., 19 November, 1902, 
C. G. Pringle, 11191 (Mo. Bot. Gard. Herb.). State of 
Puebla, vicinity of San Luis Tultitlanapa, near Oaxaca, 
June, 1908, C. A. Purpus, 3356, 3357 (Мо. Bot. Gard. 
Herb.). 
After a careful reéxamination of the original material on 
which this variety was based, particularly in the light of addi- 
tional specimens from subsequent collections, it seems unde- 
sirable to retain the plant as a variety of 8. alatum Hook. Mr. 
Hooker's species was founded on specimens collected in Deme- 
rara, British Guiana, by Dr. Hancock; and specimens secured 
by Mr. Gardner in the Organ Mountains of Brazil and by 
Tweedie on the marshes of the La Plata River were considered 
conspecific. While the writers have not seen any of these 
specimens, yet from the original description and the illustration 
accompanying it that species is interpreted as having a broadly 
winged stem, short and relatively broad ensiform leaves, and 
broad spathes. These characters can not be applied properly 
