38 E,UBIA.CE^. Hedtotis. 



with the petiole on both sides, entire, toothed, or sometimes fringed with 

 bristles. Flowers axillary or terminal, solitary, cymulose, or glomerate. 

 Plant often turning blackish in drying. 



§ 1. Corolla hypocrateri/orm ; the tube much longer than the teeth or segments 

 of the calyx {which are distant in fruit) ; the limb glabrous: stamens and 

 style diacio-dimor]ihous, i. e., the stamens in one plant inserted in or near 

 the throat of the corolla, and often someivhat exsertcd, and then the style in- 

 cluded ; in the other, the stamens inserted into the tube of the corolla near 

 the base, and the style exsertcd : filaments short : anthers linear or oblong : 

 capsule somewhat didymous or 2-lobed, the very broad summit free from the 

 calyx, loculicidal : seeds several (8-20 in each cell), scroUculate or reticulated, 

 oval or roundish, with a deep hollow on the face : small annual or sometimes 

 perennial herbs : stipules entire, minute : peduncles axillary or terminal, 

 one-floivered. — Houstonia, Linn. hort. Cliff. (Species of Anotis, DC, 

 Am. ? Endl. Poiretia, Gmel. Panetos, Rqf. ?) 



The name Houstonia must be retained for whatever section shall include H. 

 cjerulea, on which that o;enus was founded in the Hortiis Cliffortianus. This, if con- 

 siderably extended, wovild probably include a large portion of De CandoUe's species 

 of Anotis, but in a more restricted sense perhaps veiy few. Hedyotis (Anotis) 

 gentianoides, Eiidl. icomgr. t. 89, certainly belongs to this section. 



1. H. minima: annual, glabrous, at length dichotomous and depressed; 

 leaves linear-spatulate, with a long attenuate base ; peduncles not exceeding 

 the leaves; capsule obcordate, free only at the .summit ; seeds oval, nearly 

 smooth, with a broad cavity on the face. — Houstonia minima. Beck, in Sill, 

 jour. 10. p. 2G2. 



Banks of rivers and prairies of the South Western States. Near St. Louis, 

 Mis9.ou\i, Beck, Dr. Engelmann! New Orleans, Nuttall ! Arkansas and 

 Western Louisiana, Nuttall! Dr. Pitcher! Dr. Hale! March-May.— 

 Plant less than an inch high when it begins to flower; when old 3-4 inches 

 high, the peduncles becoming axillary or alar. Leaves 4-5 lines long, 

 scarcely a line wide. Corolla rose-color or pale purple, large for the size of 

 the plant, but smaller than in H. cajrulea ; the tube narrowed at the base, as 

 long as the semiovate-oblong lobes, at length about thrice the length of the 

 calyx-segments. Seeds 10-15 in each cell; the cavity of the face wider 

 than in the following, with a longitudinal central ridge. 



2. H. ceerulea (Hook.) : annual or biennial, glabrous; stems numerous, 

 erect or spreading, dichotomous ; leaves oval-spatulate or oblanceolate, the 

 radical and lower ones tapering to the base or somewhat petioled, usually 

 minutely ciliate ; peduncles fifiform, elongated, spreading; capsule very 

 broadly obcordate, free above the middle ; seeds roundish, scrobiculate. — 

 Hoolc. ! fl. Bar. -Am. 1. p. 28G ; Darlingt. fl. Cest. p. 104 ; not of Wight 

 K' Am. Houstonia cajrulea, Linn.! spec. 1. p. \0b ; Bat. mag. t. 370; 

 Purshfi. 1. p. 106; Ell. sic. 1. p. 192; Torr. ! fi. 1. p. 172 ; Bart. fl. 

 Amer. Sept. t. 34, f. 1. H. pusilla, " Schcqf, it. 2. p. 306" ; Gmel. syst. 1. p. 

 236. H. Linnrei a. elatior, Michx. ! fl. I. p. 85. Chamsejasme inodora 

 Sec. Pluk. aim. t. 97, /. 9. 



/?. minor: smaller; the branches and peduncles divaricate or spreading; 

 flowers smaller. — Hook. I. c. Houstonia Linnoei /3. minor, Michx. I. c. 

 H. patens. Ell. I. c. 



Canada! (from lat. 48°) to Louisiana! on grassy banks, wet rocks dec. 

 (3. Mostly in dry soil throughout the Southern States! April- (Feb. or March 



