Houstonia. - RUEIACE-E. 25 



plish withoat yeUowish eye. — Sk. i. 191 ; Gray, Proc. Am. Acad. iv. .314. IT. Linnai, var. 

 minor, iiichx. Fl. i. 85. Ihdijotia mini inn. Turr. i Gray, Fl. 1. c. in part, & //. curuka, var. 

 minor. — Dry or saiidy si.il, .-^. \'irgmia to Texas in the low country, also Illiuoi? ? and Ten- 

 ]i(.s-ee; fl. early spring. 



Vax. pusiUa. An inch or .so higli, more diffuse in age: leaves narrowlv spatulate 

 (half a line or a line wiile) ; upper ones nearly linear: >eeds smoother, with more open and 

 oA-al hilar cavity, and sometiiues an elevated line witliin, as ileserihed in Pnn.-. Am. Acad. 

 1. c, a character urit found in the larger and broader leaved form. Perhaps from the char, 

 this is the true H. p<iti:i:.<. Ell. But we Iia\ e it only from Louisiana {Hale, Jjrummond) and 

 Texas. Drnmmond aud i>thers : there ]);issiiiu- into the other form. 

 '■^"'H. minima, Beck. More diftuse. commonly seahrous: leaver spatiilate to ovate: flowers 

 usually larger : calyx-lolie> more foliaceous. olilon^-lanceolate, suiiirtiiiie> 2 lines long, verv 

 much longer than the o\ary, equalling the tube of the purple or violet corolla : lobes of the 

 latter 2 or 3 lines long: j)rimarv peduncles sometimes declined in fruit ? — Amer. Jour. Sri. 

 X. 262: (iray, 1. c. //w/y"//* minima, Torr. i Gray, 1. c, in part only. — Dry hills, ^Mis- 

 sonri and Arkansas to Texas, first eoU. by L. C. i>c. /,■ about St. Louis; fl. early spring. 



* * SI ii'lcr l^_Mly-^t^■mmed annnal, with lateral horizontal peduncles, and very small flowers: 

 corolla sli.irt-salverform: seeds crateriform, ^A^th a medial hilar lid^^c 



TT subviscosa, Grat. .V span or two liigli. minutely viscidulous-pubescent, with rather 

 .simple spreading branches : leaves narrtiwly linear, half-inch long ; pedimcle in first fork 

 and from all foUomug nodes, rather sliorter than leaie-. b"rizontaUy refracted in fruit: 

 cal^'x and cajsuK' a line high : corolla about same length, white : capsule didymous, only the 

 summit free: s'_t:1s 10 in each cell. — Proc. Am. Acad. iv. 314. Oldenlandia suhviscosa, 

 "Wright in Gniy, PI, Wright, ii. GS. — S. Texas, Bcrlandier, Wright. 



* * * Depressed or low-tufted >pei ic-s ; coroUa ^alverfurm or in one species funnelforni: fila- 

 ments as well as anthers or summit if style reciprocally exserted quite out of the throat; 

 J'ritctifiroits peduiuh;i <iU short and- recurved. 



-t— -Annual, with small funnelform corolla: ^eeds open-crateriform : ?cuiiuus stipules setulu^e- 

 ciliate ! 

 H/tLUmiflisa, Gsay. I\lucli branched from the root, repeatedly dichotomous, forming a de- 

 pressed tuft, puberulent and viscid : leaves linear-lanceolate, thicki,sh (half-iuch or more long !. 

 mueronate : fl.wers in all the forks, crowded with the leaves at the ends of branctlets : calyx 

 4-iiarted into long setaceous-subulate spreading lobes : corolla pale purple or nearly whiie, 

 open-funneliorm, 3 lines Ljng, hardly twice the li-ngth of the calyx : the oblong lobes puberu- 

 lous inside: capsule a Une in diameter, globose-oidyinniis, three-fourths free, only the base 

 girt by the short accrete calyx-tube, — Proc. Am. Acad. iv. 314 (not of Henjsl. Biol. Bot. 

 which Is H. Wriglttii]. H-rJi/utii [Uuiu^tvnia} humifusa. Gray, PI. Liudh. ii. 216. — Sandy 

 or gravelly plains aud hills, Texas. Wright, Lindheimer, Reverchon, &c. : fl. spring. 



•i— H — Perennials, prostrate, with naked stipules and elongated salverform coroUa, flowering con- 

 spiou<iusly in early spring: later growth producing tlu-ough the summer iuconspicuuus cleistoga- 

 mous flowers, with ^liort ^y^-t mostly well-formed but unopeniug) corollas. 

 " ~Fr. rotundifolia, iliCHx. Perennial by slender rootstocks or slio.:'t>. more or less creep- 

 ing, glabrous or with some hispidulotis pul:iescence : leaves .^Lunewhat orbicular, slightly 

 petioled, not longer than the internodes : peduncles 2 to 4 lines long or in cleistogamous 

 flowers very short: developed corollas bright white, with filiform tube (3 or 4 lines \-nv^) 

 longer than the oblong lobes : capsule mt^re than half free, somewhat didymous : seeds 

 comparatix elv large (half-line in diameter), rough-scfbiculate, acetabuliform, — Fl. i. S.5 : 

 Pursh, 1, c. ; F.ll. 1. c. Hedgotis rotundifolia. Ton. & Gray, Fl. ii. .is. OkAniimdia rotundi- 

 folia. Chapm. Fl. ISO, the later " apetaluiis fruiting" flowers noted. — Low sandy ground, 

 S. Gar. to Florida and Luui>iana- 

 H. rubra, Cat. Suffrutescent and multicipital from a deep root, forming a depressed tuft 

 of 2 to 4 inches high, glabrous or minutely puberulent, densely leafy: leaves narrowly 

 linear, an inch or more long, or earlier ones rather lanceolate and slu.irrer : corolla "red " 

 or rather purple, sometimes Ulac or varying to white ; tube half-inch to nearly inch long, 



'■* slender ; oblong acute lobes 2 or 3 lines long : capsule 2 lines wide, less high, didymous, fuUy 



three-fourths free: seeds open-crateriform, — Ic. vi. t. 374: Benth. PI. Hartw. 15. Hedyo- 



■ ?" lis ( fLxigtonia ) rubra, Gray, PI. Fendl. 61 . Oldenlandia ( Hn„.it:,„ia ) rubra, Gray, PI. Wright. 



It!* ii. 6.<. — stonv or gravellv hiUs, Xew Mexico and Arizona. (Jlex.) 



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