OENTIANE.E. 221 



6 S Calycosa. Stem slightly an<jled, spnrinfily branclicd. or simple. — 

 Lddveg sos?ile, oval, obtuse. Floircrs terminal, frequently solitary. Calyx 

 utualiy lO-paried, with the segments leafy. CorolUi 7-10 parted, with lance- 

 olate p' -= 



Iv. June — Sept. In rich and wet soils. 1-2 ft. 



7 S^fmcrect, slender, branching. /.cai'''< lanceolate, erect •, 

 •eg ' ily.x 7-12-parted, linear, shorter than the corolla. Corolla 

 8-12-narted, wiih the segments lanceolate. 



Kcd. ij. ? July — Sept. Around ponds. 



8 S Gevtianoides. Stem erect, slightly angled. Leaves linear, acutCi 

 Ion ■" V axillary and terminal, the terminal ones crowded. Culyx 

 ca: . ^-10. parted, with the segments subulate. CoroZ/c/ 8-10-parted, 

 wntli t»U>vau- St>gments. Stdnicns sliort. 



Red. 4 ? Aug.— Sept Midd'e Georgia. 

 Remarks. We h&ve found several varieties of this penus willioul Ijeing able to de- 

 lennine k> which sjtecies ihey belong, and we have only given thoso species which are 

 well ch.iracierised, leaving it for future investigation to arrange the genus more saiis- 

 f&cionly. 



Gexts rv CENTAURELLA. 



Calyx 4-clcrt. pcrsi.stcnt, glahrous. Corolla campaniilate, 

 persistent, 4-clctt. Stamons 4, insertcxl into the tube of the 

 corolla, short. Capsule 1 -celled, 2-valved, many seeded. 



1 C Verxa. 5Ifrm simple, angular, glabrous. Z>ot?es few, resembling scales. 

 Floufrs terminal, 1-3. Calyx with lanceolate, expanding segments. Style 

 pcrsi-^'etit. Stiffma 2-cleft. 



White. G Feb. — April. On the sea coast of Ga. 4-8 in. 



2 C Paviculata- S.'em smooth, with bra'liiite branches. Zifare* minute, 

 i'ibulate, th se of the ba?e alternate, those towards the summit opposite. /'Yotfi- 

 ^r» in panicles, on . peduncle?, the lower ones branched. Calyx 4- 

 clcft, the two outer at. Corolla about the length of the calyx. 



Greenish white. Q Aug. — Sept. In ditches and damp grounds. 8-12 in. 



Genus V HOUSTON I A. 



Calijx 4-clefr. Corolla funnel shaj)ed, 4-cleft. Stame?is 4. 

 Stigma simple. Capsule half superior, 2-valved, 2-celled, 

 many seeded, dehiscing transverse!}'. 



1 II Patens. Stem erect, square, glabrous, with expanding branches 

 dichotomous- Z^ave* opposite, spatulate-lanceolate, ciliafe. I^lou-ers solita- 

 ry, termina', or axillary, 2 scales in the middle of the peduncle. Calyx with 

 linear ?» L'ni'^nLs, persistent. Cupside compressed. 



^Vhl•< . O Feb. — INIarch. Common. 1-2 in. 



2 II C'ERTLEA. S/tw erect, slender, square, s|)aringly branched. leaves 

 of the roof, spatulate, tho«o of the stem lanceolate. Flovrers on a.villary, 

 long peduncles, each ore flowered. 



White. %. May — Aug. Common in mid. Car. & Ga. 4-C in. 



3 H ' '^LIA. 5^eOT erect, square, branching, glabrous. Z^'ores ses- 

 sile, la ■■ , a:ienuate. Flouxrs in corymbs, on very short peduncles. 



r •• 4 Jnne — Aug. Mid. & up[)er dis. 8-lCin. 



! 11 1 RPUREA. 6Vt-7/i erect, much branched, glabrous, hairy at the joints, 



J with the angles cihaie. Leaves ses^sile, ovate-lanceolate, obtuse at the 



.*!-' 'V. - '-i'-focent. i^ofcer* in terminal corymbs- Ca/yx pubescent, 



U. iltS. 



1 ir;ir. .4 June — Aug. Abundant on the Ocraulgee, near Macon. 

 10-15 mchea. 



17* 



