be found in the Ames Herbarium. The second and third 
sets from the collection are to be found in the Herbarium 
of the Missouri Botanical Garden and in the United 
States National Herbarium. 
Spiranthes chartacea L. O. Williams sp. nov. 
Herbae erectae, terrestres, usque ad 4.5 dm. altae. 
Folia elliptica ut videtur. Inflorescentia confertiflora, 
pauci- vel multiflora. Sepalum dorsale lanceolatum, acu- 
tum. Sepala lateralia linearia, acuta. Petala late oblan- 
ceolata, faleata, unguiculata, acuta, apice plusminusve 
denticulata. Labellum panduratum, breviter unguicula- 
tum. 
Erect, terrestrial herbs, up to 4.5 dm. tall. Scape cov- 
ered with chartaceous, lanceolate, acute or acuminate 
bracts, with the remains of the leaves toward the base. 
Leaves not present at the flowering stage, apparently 
elliptic and perhaps up to 8 cm. long and 1.5 cm. broad. 
Inflorescence up to 7 cm. long, congested, few- to sev- 
eral-flowered; floral bracts up to 2.5 em. long, ovate- 
lanceolate to ovate, acuminate, chartaceous, striated. 
Dorsal sepal 7-9 mm. long and 2.5-8 mm. broad, lan- 
ceolate, acute, 3-nerved, pubescent dorsally nearly to the 
apex. Lateral sepals 8-10 mm. long and 1.5-2 mm. 
broad, linear, acute, 8-nerved, pubescent dorsally to 
about the middle, forming a short mentum at the base. 
Petals 6-8 mm. long and about 2 mm. broad, broadly 
oblanceolate, faleate, unguiculate, acute, 8-nerved, the 
apical half more or less denticulate, adnate to the dorsal 
sepal. Lip 9-10 mm. long and 4-5 mm. broad, pandu- 
rate, short-unguiculate; terminal lobe 5-6 mm. long and 
4—5 mm. broad, oval to suborbicular, acute to truncate, 
entire or more or less denticulate, both surfaces papillose ; 
basal lobes about 2 mm. long and 4mm. across, rounded, 
adnate to the column; claw about 2 mm. long and 1 mm. 
[ 226 | 
