Plantae terrestres, spithameae, sub anthesin aphyllae; radici- 
bus fasciculatis, tuberoso-fusiformibus; foliis ut videtur basilari- 
bus: caulibus erectis, chartaceo-vaginatis, supra laxe spicatis, 
paucifloris; floribus erectis, quaquaversis. 
Sepals dissimilar, basally connate into a tube; dorsal sepal 
concave, adnate to back of column; lateral sepals decurrent on 
column-foot, and together form an obliquely cylindric nectary, 
the apices somewhat divergent. Petals connivent with dorsal 
sepal, the inner margins agglutinate with it, decurrent at base. 
Lip with a long claw which is adnate to the connate base of 
lateral sepals, blade auriculate or sagittate at base, fleshy at the 
slightly recurved apex, the margins in the middle agglutinate 
with sides of column. Column elongate, slender, somewhat 
expanding upwards, with a puberulent front, basally produced 
in a long, decurrent foot; stigmata 2, confluent, obscurely 
bilobed at apex; rostellum erect, pliable, triangular, acute. 
Anther ovate, cucullate, acute; pollinia clavate with an ovate 
viscidium. Ovary cylindric, twisted. 
Terrestrial, small plant, aphyllous during anthesis. Roots fas- 
ciculate, tuberous-fusiform; Leaves absent during flowering 
time, appear to be rosulate from remnants. Stem erect, slender, 
heavily chartaceous-vaginate, terminated by a loosely few-flow- 
ered spike. Flowers of medium size, allsided, erect on top of 
ovary. 
TYPE: Spiranthes trilineata Lindl. 
Two species native to Mexico and Guatemala. 
Index to species 
Gularia crenulata (L.O. Wms.) Garay, comb. et stat. nov. 
Basionym: Spiranthes trilineata var. crenulata L.O. Wms. in Bot. Mus. 
Leafl. 12:36, 1946. 
Gularia trilineata (Lindl.) Garay, comb. nov. 
Basionym: Spiranthes trilineata Lindl. in Benth., Pl. Hartweg. 94, 1842. 
Gyrostachys Pers. ex BI. 
acutata (Rchb.f. & Warm.) O. Ktze. = Sarcoglottis acutata (Rchb.f. & 
Warm.) Garay 
aestivalis (Poir.) Dumort. = Spiranthes aestivalis (Poir.) L.C. Rich. 
aguacatensis (Rchb.f.) O. Ktze. = Brachystele guayanensis (Lindl.) Schltr. 
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