36 NORTH AMERICAN FLORA [VOLUME 32 
purple, glabrous outside, the lobes ovate-triangular, more or less white-villous within, half as 
long as the tube or shorter; anthers exserted; capsule subglobose, 2.5-3 mm. long, slightly 
longer than wide, subcompressed, half inferior, retuse at the apex, the free portion glabrous; 
seeds concavo-convex, oval, about 1 mm. long, coarsely scrobiculate, black. 
TYPE LOCALITY: Canada. ‘ 
DISTRIBUTION: Southern Ontario to Minnesota, Arkansas, West Virginia, and Pennsylvania. 
ILLUSTRATIONS: Bot. Mag. pl. 3099 (as H. longifolia); Britt. & Brown, Ill. Fl. f. 3398; ed. 2. 
f. 3918; Torr. Fl. N. Y. pl. 44. 
30. Houstonia floridana Standley, sp. nov. 
Houstonia filifolia Small, Fl. SE. U. S. 1109, as to description. 1903. Not H. angustifolia filifolia 
A. Gray, 1884. 
Erect or ascending perennial, 1-4 dm. high, much branched throughout, the branches 
very slender, angulate, usually scaberulous on the angles, the internodes short or elongate; 
stipules minute, thick, triangular, cuspidate, often laciniate; leaves sessile, narrowly linear or 
filiform, 6-18 mm. long, glabrous, the margins revolute; flowers in lax leafy cymes, the pedi- 
cels slender or stout, 5 mm. long or shorter; hypanthium glabrous, less than 1 mm. long at 
anthesis; calyx-lobes lance-oblong, acute, longer than the hypanthium, in fruit equaling the 
capsule; corolla slender-funnelform, 5 mm. long, purple, glabrous outside, the lobes ovate- 
oblong, obtuse or acute, white-villous within, more than half as long as the tube; anthers ex- 
serted; capsule subglobose, 1.5 mm. long and about as wide, slightly narrowed at the base, 
subcompressed, half inferior, rounded or retuse at the apex, the free portion glabrous; seeds 
about 0.5 mm. long, concavo-convex, oval, scrobiculate, black. 
Type collected in rocky pine woods, Cocoanut Grove, Biscayne Bay, Florida, July, 1895, A. H. 
Curtiss 5484 (U. S. Nat. Herb. no. 247068). 
DISTRIBUTION: In pine woods, southern Florida. 
31. Houstonia lanceolata (Poir.) Britton, Man. 861. 1901. 
Hedyotis lanceolata Poir. in Lam. Encye. Suppl. 3: 14. 1813. 
Anotis lanceolata DC. Prodr. 4: 433. 1830. 
Houstonia macrosepala Nutt.; T. & G. Fl. N. Am. 2: 40, assynonym. 1841. 
?Hedyotis Frankii Presl, Abh. B6hm. Ges. Wiss. V. 3: 86. 1843. 
?Diodia Frankii Steud. & Hochst.; Presl, Abh. Bohm. Ges. Wiss. V. 3: 86,assynonym. 1843. 
Spermacoce lanceolata Frank; Presl, Abh. Béhm. Ges. Wiss. V. 3: 86, assynonym. 43. 
Hedyotis calycosa Shuttlew.; A. Gray, Pl. Wright. 1: 81, as synonym. 
Houstonia purpurea calycosa A. Gray, Syn. Fl. N. Am. 1’: 26. 1884. 
Houstonia calycosa C. Mohr, Contr. U. S. Nat. Herb. 6: 739. 1901. 
Erect perennial, 1.5-4 dm. high, the stems few or numerous, simple below and branched 
above, stout, quadrangular, densely short-pilose or hirsutulous below, glabrous above, the 
internodes mostly longer than the leaves; stipules 4 mm. long or shorter, scarious, whitish, 
acute or cuspidate, often dentate or laciniate; basal leaves wanting at anthesis, petiolate, the 
blades mostly elliptic, obtuse or acutish at the apex, hirsutulous or glabrate on the upper sur- 
face, glabrous beneath, ciliolate; cauline leaves sessile, or the lowest petiolate, lanceolate, 
lance-oblong, or linear-oblong, 2.5-6 cm. long, 0.4-2 em. wide, obtuse to attenuate at the 
apex, rounded to acute at the base, hirsutulous, scaberulous, or glabrate on the upper surface, 
glabrous and paler beneath, scaberulo-ciliolate, 3-5-nerved; flowers numerous, in small, usually 
dense, leafy cymes, the pedicels 6 mm. long or shorter, scaberulous; hypanthium at anthesis 
about 1 mm. long, glabrous; calyx-lobes lance-linear, attenuate, several times as long as the 
hypanthium, in fruit often twice as long as the capsule or longer; corolla funnelform, 6-7 mm. 
long, purple, glabrous outside, the lobes ovate-oblong, obtuse or acute, more or less white- 
villous within, usually less than half as long as the tube; anthers exserted; capsule subglobose, 
3-4 mm. long, longer than broad, very slightly compressed, half inferior, rounded or retuse at 
the apex, the free portion glabrous; seeds concavo-convex, suberbicular, 0.5-0.8 mm. in diam- 
eter, coarsely scrobiculate, black. 
TYPE LOcALITY: Carolina. 
DISTRIBUTION: Maine to Illinois, Oklahoma, Alabama, and North Carolina. 
ILLUSTRATIONS: Britt. & Brown, Ill. Fl. ed. 2. f. 3916; Rob. & Fern. Man. f. 916. 
