APPE]!^DIX. 
475 
9. BOERIIAAVIA, L. Fruit with 5, or sometimes 10, ribs or angles ; flowers usually panicled or 
racemose. — About a dozen species occxir upon hotli sides of the Jlexican bouudary from W. Texas to 
Arizona. 
10. PISOJsIA, L. Flo-svers dicecious, cymose-corymhed or unibeled; calyx of the staminate flower 
campanulate^ of the pistillate flower cylindrical ; fruit terete or ribbed, smooth or <j;liuidular. Trees 
or shrubs. — Two species common from the AVcst Indies to Brazil are found in S. Florida ; P. aculkata, 
L., spiny, Avith alternate leaves and clavate glandular fruit, and P. obtusata, Sw., spineless, with opposite 
leaves and oblong glandless fruit. 
IV. B0UGAINVILLEJ5, Chois. Involucre bract-like, large, <lilatrd. 
11. HEEMIDIUM, S. Watson. Flowers approximate in a lu'ad-likc clnslcr. cai li iH dic< 1 aauaic to 
the midvein of the cordate colored bract; flower aud fruit marly as in Mimhilis. Sec [lage 2tiG. 
MIRABILIS. 
§ I. NYCTAGF., Eoyen. Involucre 1-flowcicd. Calyx long-tubnlar <>r liium-itoim. Fl.iwcis l.irgc. 
1. M. Jalapa, L. Cultivated. 
2. M. T.OXGTl'-LORA, L. Yiscid-pul lesceii ( , ill i'fUM' ; llowers sessile, clusl.Tcil : iiivolueral-l.ilM s linear : 
calyx-tube very long.— W. Texas to 8. Ari/.oua ami Xorlliern Mexicn. 
2. QlLUrOCLIDION, Chois. Nearly as the last, bul the involnere :!-l2-lln\vrn il. 
;5. ]Sr. Ti;in.()i:A, Benlh. lii\(iiuere villous, :V' long: calyx ('(-12 ' long.— M' n iro. 
4. M. MTLTiKi.OP.A, Cr:\y. Involucre glabrons, camt>,niulate. T long, .'',-clert : cal> \2 inng : slaiiienH 
4-r>. — S. California to N<'w llcxico. 
yS. OXYBArnOI]>E.S, Gray. Involucre l-:i-llowered. ( '.ilyx liroad-rnnueHorm from a short tube; 
flower.s rather small. 
5. M. oxvBAriioiDKS, Gray. Involucre ;Mlowere(l. .'i-i>arled ; stamens W. Mexico. 
6. M. Calivokxica, Graj'. Involucre 1-flowered, r>-rleri : st ame),s mostly .'>. Sec j.age 2f^i. 
OXYBAPHUS. 
^ 1. Calyx short, subcarapanulate or rotate-funnelform, slightly .-xceeding tlie inx olucie. 
* Fruit glabrous, usually tuberculate along the ribs and sometimes beixNcen them ; involucre 
1-3-tlowered. 
1. O. vise (^siTs, LTIer.— Mexico. 
2. O. (;LAni:n-<)i.irs, YahL Flowers in crowd.'d eli!>ters terminating tin- l,ran(l..-..-M. x„-o. A 
variety with 2-:>-{lowered involnere occurs in W. Texas. 
;5. O. AUOKKGATU^, Vahl. Peduncles solitary, axillary, vilhm>, >omeuhai „.H|.lin;:.-\\ . 'l-xas ami 
Mexico. 
* * Fruit pubescent ; involucn- always IJ-.^-tlowered. 
4 O XVCTVGIXKfS, Sweet. Leave, all [.. tioled, (.■xeept (i,e uopermost rcdneed o„e,.-,obtn^e or 
cordate at base; fiatit rather hirsute. so>ne,iuM-s subnt i.-.la.e-rn^o.- b.twccn .Ic r,l...^\ ar.ahlc. 
Wisconsin and the I'pper >tlissonri to Texas an. 1 >e v.Mexi,,,. ,, ^ 
'>■ O UJMDfS. Sw<'el. X.-arly glabnms exee|,t the inllnroeene,. : jeav. - all -nu - :>e,.ui.,ie or 
oblong-hinocohite. acute at ba>e ; iVuit more hirsute, mnrienlaie alon^ or hetu.-e,, r 
^" ^G^O.' iTii!si-Ti->. Sweet. 1- high, hirsute thronglionf : le.. . . Ha- I- ' 
petioled ; fruit of O. „,//7,o/o<. -M.-rroiu (he Sa 4.a!rh..n at, to W.Texas. . 
7. O.AN.;tvn..o,,,. ^, M; high. -!a!.-.^ ex e.pl t he peduncles and nn olnm ^ . leas e> I, nea, , 
fiiiit jtubescent. Sec 
, . ,.•;,:■,.'■.).■ r. i;;! I • :ite-fil)loiig, 
v\ 2. ('■i]\ x im.iv ii::, !-.e,s iy iuiuiell ' - 
ii'.aie. ]iube-rei:t. deeply Sll! 
"• ' *' I ■ "I' "" ■■ ,[i oliii re .".liowcred : 
o. U. l'iai;!u:i.ii. 1.. !!■. ii'tm-. ' ■ ■ 
stamens .'. ; fruit umiesci il.ed.— A douVtiful '• 
N . ( ■.iroliii.'i 
