SYNOPSIS OF THE FLORA OF COLORADO. 115 



mostly corymbose at the summit ; lower leaves oblong-lanceolate, upper 

 ones linear-lanceolate, very entire, very rarely 2-3 toothed and minutely 

 scabrous as well as the stems; lobes of the small corolla 3"-4" long, 

 broadly obovate, twice exceeding the 7-10 setaceous divisions of the 

 calyx ; fructiferous calyx not exceeding the carpels. Near Pueblo, Greene. 



NYCTAGINACE^I. 



MIRABILIS 1 OXYBAPHOIDES, Gr. (Quamocltdion oxybaphoides, Gr. SHI. 

 Jour., 2d. S., 15, p. 320.) Stems procumbent, diffuse, slender; leaves all 

 deeply cordate, on rather long petioles, lowestreuiform, upper ones acumi- 

 nate, often subangled; involucre 3-flowered, deeply 5-cleft, very viscid- 

 glandular as well as the peduncles in the loose panicle, lobes ovate, 

 rather acute, a little shorter than the campamilate perigonium; sta- 

 mens 3 ; fruit subglobose-obovoid, glabrous, destitute of ribs or angles, 

 blackish. Canon City, Brandegee. 



MIRABILIS MULTIFLORA, Gr. (Oxybaplius multiflorus, Ton 1 , in Ann. JV. 

 T. Lye., p. 237; Quamoclidion mutiiflorum, Torr. Sill. Jour. I. c., 321.) 

 Pulverulent and minutely pubescent; stems subquadrangular, erect, 

 widely branched, with enlarged joints; leaves opposite, broadly cordate, 

 acute or acuminate ; petioles 4/'-6" long; flowers axillary and terminal; 

 involucre campannlate, 1' long, pedunculate, segments ovate, acute ; 

 flowers 4-7 ; perianth funnel-form, 1 J"-2" long, persistent, 5-lobed, lobes 

 acuminate, purple; stamens 5-0, as long as the perianth; anthers large, 

 yellow ; fruit smooth. Canon City, Brandegee. 



OXYBAPHUS NYCTAGINEUS, Sweet. HaH & Harbour, 483. Golden 

 City, Dr. Smith. Denver, Porter. Canon City, Brandegee. 



Var. CEEVANTESII, Gr. (0. Cervantesii, Lag.) Bot.Mex. Bound. Surv., 

 p. 174. Branches and involucres viscid-pubescent or villous; leaves much 

 thicker, obtuse, and cordate or sub-cordate at base. Canon City, Bran- 

 degee. 



Yar. OBLOXGIFOLIUS, Gr. Bot. I. c., p. 174. Leaves ovate-lanceolate or 

 oblong, thick, not cordate at base, about 2' long; panicles terminal, laxly 

 many-flowered, expanded ; stems 2-4 high. Cherry Creek, near Den- 

 ver, Dr. Smith. Canon City, Brandegee. 



OXYBAPHUS HIRSUTUS, Sweet. DC. Prod., 13, 2, p. 433. Very densely 

 pilose with long, spreading, articulated hairs; leaves sessile, ovate, 

 angola te-dentate or repand; involucre pubescent-tomentose. Chiaim 

 Canon, Porter. Wet Mountain Valley, Brandegee. 



OXYBAPHUS AXG-USTIFOLIUS, Sweet. Stems glabrous, ascending, 

 slender, l-6 high; leaves glabrous, linear, usually elongated, 2 / -4 / 

 long, thick, glaucous; flo wers loosely panic-led; peduncles and involucre 

 pubescent; involucre with 5 triangular, ovate, acuminate lobes, 3-5- 

 flowered, becoming 5" long in fruit ; perianth short, sub-campanulate or 

 rotate-fuimel-form, scarcely exceeding the involucre, white or pink, the 

 limb 1J" long; stamens exserted ; fruit hoary-pubescent, 2' 7 long. Hall 

 & Harbour, 482. Denver and Colorado Springs, Porter. Canon City. 

 Brandegee. Dr. Smith ; B. H. Smith. 



1 MIRABILIS, L. Involucre herbaceous, scarcely changed in fruit, calyx-like, of 

 united leaves, 5-lobed, 1-2-rlo \vered. Calyx tubular, or more or less broadly funnel- 

 form. Stamens almost always 5, united within the persistent base of the calyx. 

 Stigma capitate, granulated. Fruit indurated, smooth, ovoid, not angled and scarcely 

 or not at all ribbed. Seed straight, with an incurved embryo, inferior radicle, andfolia- 

 ceous cotyledons. Herbs, with jointed stems, opposite leaves, and flowers solitary in 

 the axils, or in crowded terminal clusters. 



