224 UNITED STATES AND MEXICAN BOUNDARY. 
В.? LATIFOLIA : foliis ovatis tenuibus basi obtusis summis cordatis glabris, vaginis ore ciliatis ; 
spatha subtriflora brevi rostrata basi subturbinata.—Shady alluvions of the lower Rio Grande, 
September ; Schott. Stem branching, (only the upper part seen,) glabrous. Leaves very thin, 
2-3 inches long, 1-14 inch wide, acute. Flowers only 2 and sometimes a rudiment in one 
spatha. Sepals and petals nearly as in C. Virginica, but the latter, Mr. Schott says, are white. 
We need more specimens, in order to determine whether the plant is a distinct species. 
CoMMELYNA LINEARIS, (Benth. Pl. Hartw. р. 27, var. LONGISPATHA :) caule erecto-subramoso ; 
foliis lanceolato-linearibus complicatis, margine scabro ; spatha terminali complicata longissime 
rostrato-attenuata ; pedunculis geminis, incluso 8-10-floro, exserto 1-2-floro ; petalo impari 
sessili lateralibus paullo breviore.—Near the Copper Mines, New Mexico, August; Bigelow. 
(No. 700, (in part) 1923 and 1930, Wright. No. 864, Fendler.) Stem 1-2 feet high, with 
short axillary branches. Leaves 4—6 inches long, and about a quarter of an inch wide, tapering 
at each end, slightly pubescent; the sheaths a little swollen, fringed at the orifice. Spatha 
peduneulate, cordate, not at all turbinate at the base; the narrow tapering somewhat recurved 
point 1-2 inches long; peduncles of the spatha hispidly pubescent, the terminal one much 
exserted.  Exserted flowering peduncle about an inch long. Exterior вера! ovate, acute, 
carinate; the two lateral sepals united above the middle, obtuse. Petals bright blue, the 
lateral ones unguiculate, the odd one about one-third smaller and sessile. Stamens 6; filaments 
all glabrous ; 3 of the anthers abortive and cruciform ; the others fertile, oblong, one of them 
larger and curved. Style long and slender, a little incurved toward the summit. Capsule 
oblong, one of the cells usually abortive, the other cells 2-seeded. Seeds oblong or roundish, 
corrugated. A well characterized species, remarkable for the long attenuated apex of the 
spatha. I first received it from Lieutenant Abert, of the United States army, who collected it 
on the Pecos river. 
TRADESCANTIA VIRGINICA, Linn. Sp. p. 412; Kunth, Enum. 4, p. 81. Valley of the Limpio, 
July; Bigelow. A glabrous narrow-leaved form. No. 1928 and 1929, Wright, are other 
varieties of this polymorphous species. 
TRADESCANTIA MICRANTHA (n. sp.): caule subramoso repente linea alterne pubescente; foliis 
ovatis subamplexicaulibus acutis glabris margine serrulatis, vaginis brevibus ore ciliatis ; 
umbella pauciflora sessili; sepalis obtusiusculis ad carinam hispidulis.—Lower Rio Grande, 
towards the mouth, October; Schott. Stems flaccid, smooth, except the narrow alternate line 
of pubescence. Leaves about three-fourths of an inch long, and one-third of an inch wide, the 
two uppermost connate. Umbels only terminal in our specimens. Pedicels 3-8 lines long, 
nearly smooth. Flowers scarcely one-third of an inch in diameter. Sepals ovate-oblong, equal. 
Petals pale blue, one-third longer than the sepals, obovate-orbicular. Stamens 6; filaments 
all bearded ; anthers all similar and fertile ; the cells separated by a broad connective. Ovary 
obovate ; style long and slender ; stigma peltate-capifate. This species has the aspect of Callisia 
repens. , 
TRADESCANTIA "WANDRA (n. sp.): саше subramoso erecto glabro, superne nudo; foliis remotis 
lanceolatis glabris margine ciliolato-scabris, floralibus brevibus acuminatis, vaginis ore nudis; 
umbella sessili multiflora; pedicellis villosissimis ; filamentis imberbibus.—Mountains and 
moist, rocky places, Puerto de Paysano, September; Bigelow. (No. 700, Wright.) Stems 
12-18 inches high, moderately branched above. Leaves 3-5 inches long, and 6-8 lines wide, 
