404 SUPPLEMENT. 



pedicels bracteate : calyx-lobes ovate-lanceolate • corolla white or whitish ; the lobes 3 or -4 

 lines long, thin, glabrous, indistinctly uervose and reticulated : follicles fusiform, glabrous, 

 4 or 5 inches long. — By water- courses, in mountains of N. W. Sonera, near the borders of 

 Arizona, Pringle. 



142. HIMANTOSTEMMA, Gray. (Name composed of ijuavro?, strap, 

 and a-Tefifjiu, crown.) — Proc. Am. Acad. xx. 294. — Single species. 



H. Pringlei, frKAY, 1. c. Diffusely spreading perennial herb, with branches a foot or so in 

 length, banlly at all twining, puberulent : leaves opposite, small, sagittate cordate, half-inch 

 to incli long, on petioles of nearly same length: peduncles axillary, 2-flowered : pedicels 

 slender : calyx-lobes attenuate-lanceolate : corolla-lobes lanceolate, thickish, veinless, 3 lines 

 long, the upjicr face dark brown-purple, its ramentaceous seta; whitish, or those toward tlie 

 throat purplish and flatter, more spatulate and stipitate : strap-sliapcd lobes of the crown 2 

 lines long, erect, purplisli : follicles fusiform, armed with rather rigid processes : seeds co- 

 mose. — Water-courses in rocky hills, N. W. Sonora, south of Altar, therefore not very 

 near the Arizona boundary, yet may reach it, Praiyle, 1884. 



143. LACHNOSTOMA, HBK. (Aaxi^oc, wool, (rro/xo, mouth, referring 

 to the throat of the corolla.) — IIBK. Nov. Gen. «fc Spec. iii. 198, t. 232 ; Gray, 

 Proc. Am. Acad. xii. 74; Hemsl. Biol. Centr. Am. Bot. ii. 335. — Three good 

 species now known, two of them south of the Istlmius. 



L. Arizonicum, GnAY. Pubescent herb, freely twining : leaves thin, cordate-sagittate, 

 long-petioled : peduncles slender, umbellately few-flowered : corolla white, externally gla- 

 brous, with narrow tube almost as long as the ovate-oblong lobes, tliese lightly green-reticn- 

 lated ; throat retrorsely villous : crown simple, its thickish free margin 10-crenate : follicles 

 ovate-lanceolate, smooth and glabrous, acutely 3-5-c.ostate. — Proc. Am. Acad. xx. 296. — 

 Santa Catalina Mountains, S. Arizona, Lcmmon, Pringle. One specimen from Lemmon, in 

 flower, was mistaken for Gonolobus reticulalus, another (in fruit only) for Rothrockia, in Proc. 

 Am. Acad. 1. c. 295. 



15. GONOLOBUS, Michx. 



G. obliquus, R- Br., p. 104. The flowers of this are said to have the scent of Calycanthus. 

 The var. Short n is to be excluded. 



G. hirsutus, Mimx., p. 104. Crown nearly as in G. ohllqwis, that is, with the intermediate 

 crcnatures more or less bidentate, all very short. Varies freely, as shown by Dr. Melli- 

 champ, into 



Var. flavidulus. Corolla from dingy brown-purplish to greeni.sh and dull straw-color, 

 the reticulated veins more evident as the hue is lighter. — G. flavidulus, Chapm. Fl. 368, & 

 Bot. Gazette, iii. 12; Gray, in ed. 1, 394. G. macropliijUus, Ell. Sk. i. 327. — Common with 

 the darker-flowered plants, from S. Carolina to Florida. 



G. Shortii, Gray. (To come before G. Carolinensis, in the same sul)division.) Resembles 

 G. ohlif/nus, but commonly larger-leaved, and the flowers also .said to liave the scent of Caly- 

 canthus blossoms ; the bud conical-oblong : corolla dark crimson-purple, its lobes lignlate, 

 fully half-inch long: crown with about lO-dentate margin, the narrow intermediate teeth 

 thinnish, either emarginate or two-parted, a little exserted beyond the alternate broader and 

 thicker ones. — Bot. Gazette, viii. 191. G. ohiiquus, var. Shortii, Syn. Fl. 104. — Along the 

 mountains, F. Kentucky, Shoii, N. W. Georgia, Chapman. Probably common. 



G. Carolinensis, P. Br., p. 104. Flowers said by Engelmann to have a cimicine odor: 

 crown with more exserted subulate bifid teeth, but these variable. — From near Washington 

 and S. Missouri, southward. 



G. Baldwinianus, Sweet, p. 104. Corolla clear wliite, accordmg to Chapman. Where- 

 fore the G. hirsutus, Lodd. Cab., may be the \s.r. Jlaviduhs of that species. 



