Obdeb 61— EUBIAOE^. 403 



ovate. Sts. very slender, forked, 3 to 5' high, each branch bearing a flower. Cor. 

 pale blue, yellosvish at thp center, about 5" wide. May — Aug. (Hedyotis Hook. 

 Oldenlandia, Gray.) 



j3. Mi^NOR Mx. Branches and ped. spreading with a wide angle ; fls. smaller 



(3 to 4' wide). — The more common form in the S. States. Mar., April. (H 



patens Ell.) 



2 H. serpyllifolia Mx. Caespitons; sis. filiform, procumbent; Ivs. roundish- 

 ovats, abrupt or subcordaie at base, petiolate, cilMate ; ped. terminal, very long ; 

 cor. lobes broad-oval. — y ? Springy places among the mts. of Car. and Tenn. 

 Sts. very slender, weak, 6 to 12' long. Lv^. no larger than in No. 1 (of which 

 this may be but another variety). May — Jl. 



3 H! minima Beck. Glabrous, simple or dichotomously branching ; Irs. linear- 

 spatulate, much attenuated to the base ; ped. at first nearly radical, at length ax- 

 illary, often not longer than the leaves; sds. 10 to 15 in each cell, oval, smooth, 

 concave on the face. — ff) Prairies, etc. Mo., Tenn. to La. Very small and deli- 

 cate, 1 to 3' high. Lvs. about 5" by 1". Fls. rose color, nearly as large as in 

 No. 1, a. Mar.— May. (Hedyotia T. & G.) 



4 H. rotundlfolia Mx. Procumbent, creeping, leafy ; lvs. roundish-oval, abrupt 

 at base, petiolate ; fls. axillary, sohtary, ped. mostly longer than the \\s. ; capp. 

 emarginate, few-seeded. — if Sandy, damp places, S. Car. to Pla. and La. Forms 

 small patclies. Sts. much branched, 2 to 5' long. Ly.s. generally longer than 

 the internodes, 3 to 4" diam. Fls. white, about as large as in No. 1. Mar. — Deo. 



5 H. purpCirea L. St ascending, clustered, branching, 4-angled; lvs. ovate- 

 lancBoiita, 3 to S-veined, closely sessile ; cymes 3 to 7-fiowered, often clustered; 

 cal. segm. lance-linear, longer than the capsule. — Mid. and "W. States S. to Ala. 

 (Eufala), in woods and on river banks. A very delicate flower, about If high. 

 Lvs. 1 to 2' long, J as wide. Cor. white, often tinged with purple. May — JI 

 (Eedyotis Hook.) 



6 H. longifolia Gaert. Radical lvs. oval-elliptic, narrowed to each end ; oauline 

 linear or lauce-linear, 1-veined; fls. in small, paniculate cymes. — 2f Dry hills, 

 Can. to Ga. and Ark. Much more slender than the last. Sts. erect, 5 to 12' 

 high, 4-angled, smooth or ciholate on the angles, lvs. 9 to 15" tay 2 to 3", oaul- 

 ine sessile, rather acute at each end, all smooth. Fls. 2 or 3 together on very 

 short pedicels, pale-purple, with deeper colored striaj in the throat. Jn., JL 

 (Hedyotis Hook.) 



p. tenuif6lia. St. very branching; lvs. very narrow; ped. filiform; fls. 

 smaller. (H. tenuifolia Nutt.) 



y 0ILI0L.4.T.\.. Lvs. oblong-linear, rather obtuse, often ciliate ; branches mostly 

 erect. — Banks of rivers and lakes, N. Y. to Ohio and Ky. Varies imper- 

 ceptibly into a. (H. ciUolata Torr.) 



7 H. angustifolia Mx. Slender, tall, strictly erect ; lvs. narrowly linear, 1- 

 voined ; fls. vt-ry numerous, short-pedicelled, in compact, terminal cymules ; caL 

 lobes subulate ; caps, obovoid or top-shaped. — 1( Prairies and bottoms, 111. to La. 

 Sts. slightly 4-angled, nearly terete, 10' to 2f high, branching. Lvs. 12 to 18" 

 long, acute, attenuate at base, 1" v^ido. Cor. white, hairy inside, 2" long. Jn., 

 Jl. (Hedyotis stenophylla T. & G.) 



9. OLDENLAN'DIA, L. In memory of OZtZenfarerf, a German physv 

 cian and botanist, who died at the Cape of Good Hope.) Calyx 4 or 

 6-lobed, persistent ; corolla funnel-form, with a short tube, little longer 

 than the calyx, 4 to 5-lobed ; stamens 4 to 5 ; style short or 0, stigmas 

 2 ; capsule wholly adherent to and inclosed in the calyx tube ; seeds 

 very numerous and minute (40 to 60 in each cell.) — Herbs erect or 

 prostrate. Stip. with 2 to 4 subulate points each side. Fls. small, 

 axillary, white. 

 1 O. glomerata Mx. Creeping Gbees-head. St. assurgent, branching; Ivi 



ovate-lanceolate, pubescent, narrowed at the base into a short petiole, or sessile ; 



fls. glomerate in the axils and terminal, cor. shorter than the leafy caL teeth. — A 



