V. PLANTS WRIGHTIAN^. 81 



237. Hedtotis (Ereicotis) acerosa (sp. nov.) : fruticulosa ; caulibus caespitosis 

 confertis foliosissimis ; foliis acerosis scabro-hirtellis 3 - 4-natim verticillatis et in 

 axillis fasciculatis persistentibus ; floribus inter folia fasciculata sessilibus ; corollse 

 tubo infundibulaii calycis laciniis setaceis et limbo suo quadruple longioribus. — 

 High prairies, from Live Oak Creek to the Las Moras, Western Texas ; June. Al- 

 so near Buena Vista, &c., Northern Mexico, Gregg. — Stems about a span high, very 

 many from the same thickened root, rigid, rather woody, erect or diffuse, leafy to 

 the top, sparingly branched ; the rigid setaceous leaves longer than the internodes. 

 Flowei's mostly solitary at the summit of the branches and in the axillary fascicles 

 of leaves. Corolla five or six lines long, purplish or " bluish " ; the lobes ovate, pu- 

 berulent inside. Anthers linear. Stigmas linear-oblong. Capsule globose, crowned 

 with the setaceous teeth of the calyx, coherent with its tube nearly to the summit, 

 two-celled; the cells 12- 20-seeded. — Hedyotis (Anotis, DC) Cervantesii, ^m?i^A, 

 I have not seen, but from the character it can be neither the present species, so re- 

 markable for its acicular leaves, nor H. rubra (Houstonia, Cav.). The latter, which 

 I have seen also from Northern Mexico, and which was found by Fendler in New 

 Mexico, is herbaceous, depressed, and I believe an annual, like H. humifusa. 



238. H. (Amphiotis) stenofhylla, Torr. 8^ Gray, Fl. 2. p. 41 : var. parviflora : 

 tubo corollas limbo vix longiore ; capsula etiam parva ; caulibus humilibus rigi- 

 dulis diffuse ramosis ; cymis apertis. — Crevices of rocks on the San Pedro River ; 

 July. — This accords with H. stenophylla, as characterized, in the shortness of the 

 pedicels, «fec. : as to the size of the corolla and the length of its tube, No. 55 of 

 Drummond's (first ■?) Texan collection is intermediate between this and No. 116 of 

 Drummond's third collection. 



239. H. stenophylla, var. parviflora : strictior ; cymis densifloris contractis. — 

 Mountain valleys east of the Rio Grande, New Mexico ; Aug. " Flowers white." 



— This has the dense fastigiate cymes and very short pedicels, especially those of 

 the central flowers, of the typical H. stenophylla, namely, the plant common in 

 Florida, and also in Arkansas and Texas (the H. lasiantha, Ntitt. in herb. Hook.). 

 That has, however, considerably larger flowers and a longer tube to the corolla : 

 but there seems to be no more constancy in this than in other characters, ap- 

 apparently of equal or greater consequence, which prove so little reliable in this 

 difficult group.* 



240. H. STENOPHY'LLA 1 passing into H. longifolia /3. tenuifolia, Torr. Sf Gray, I. c. 



— Prairies of Turkey Creek, Western Texas, June. — Same as No. 620 of Lind- 

 heimer's collection, the fruiting specimens at least ; wholly herbaceous, with the 

 cymules paniculate and loosely flowered, and all the flowers distinctly pedicelled. 

 But the pods are turbinate. The flowering specimen of Lindheimer's No. 620 (in 



* At Buena Vista, Mexico, Dr. Gregg collected specimens of the variety of Hedyotis purpurea called 

 by Nuttall Houstonia macrosepala. To this belongs Hedyotis calycosa, ShuUJeworlh, which he has de- 

 termined to be Spermacoce lanceolata of Frank and Diodia Frankii of Hochstetter and Steudel. 



No. 325 of RugePs Florida collection, named Oldenlandia corymbosa by Shuttleworth (surely not of 

 Linnieus), is Hedyotis Halei, Torr. ^ Gray, Fl. 2. p. 42. 



