122 Anton Hciincrl, 



lo. Bougainvillea patagonica Decaisne. 



Deciiisne in D' Orbignj', Voyage dans 1' Amcr. iTiLrid. Atlas Tab. Vill. 



Syn. Tricycla spinosa Cavanilles 1. c. 64, Icones plant. VI, 78, Tab. 598; Choisy 1. c. 436; Ben- 

 th am -Hooker fil. 1. c. 7. 

 Bougainvillea spinosa Heimerl, Nat. Ptlanzenf. 27; Beiträge 30. 



Friitex (v.arbuscula), usque Am altus, valde ramosus et spinosus, ramis partim elongatis, squarroso 

 V. oblique v. f. horizontale patentibus, partim valde abbreviatis, ad tubercula folia fasciculata (saepe plura) 

 floresque gerentia reductis, floribus bracteisque minoribus inter foliorum fascicula orientibus, haud specta- 

 bilibus. 



Rami ± flexuosi, tLiberculi.s frequentissimis nodosi, firmi, d= elongati, nonnunquam tortimsi, inter- 

 nodiis saepe valde brevibus (5— 15 ;«)»), peridermio griseobrimneo v. atro, rarius riifescente, dz obtusan- 

 guli V. levissime striolati, versus apices brevissime tomentelli, ceterum glabri, spinis saepe frequentissimis, 

 V. simplicibus v. apice furcatis v. (raro) apice tripartitis, in vetustatis ramis validissimis, usque 20 -inni lg., 

 f. rectis v. levissime curvatis, subliorizontale ad oblique patentibus, a latere non compressis, acutis armati, 

 ramulis abbreviatis ad tubercula, usque 5 mm lg., bre\-issime apice rufutomentella, sub spina posita 

 reductis, foliorum fascicula et 1 — 3 flores producentihus. 



Folia oblonge- ad linearispathulata, apice latissima (maiora fasciculorum 9 — \5 mnt :2—4mm), 

 basin sessilem vel petiolum brevissimum (Imni) versus cuneatim angustata, antice v. obtusissima v. late 

 rotundata v. subtruncata, consistentia crassiuscula, saepe pallide- ad griseoviridia, concoloria, v. glabra 

 v. pilis minutissimis utrinque d= puberula, integerrima, uninervia, nervo saepius tarnen vix distincto. Folia 

 eximie raphidiophora, crystallis prismaticis, transverse positis nullis. 



Flores tribracteati, pedunculo debili, florendi tempore 3 — 6^«;» lg., erectiusculo, pilis rufulis, minu- 

 tis scabridulo, post anthesin i cernuo vixque elongato suffulti. 



Bracteae eximie variabiles: aut ad anthesin minutae (3'5 — 7 mm : 3 — 6itiin), f. foliaceae, viridescen- 

 tes, flore breviores [forma a: uücrobradeata m.], sed dein auctae autiam ad anthesin florem aequantes v. eo 

 longiores (13 wn« : 11 ;;;;;;), tenuissime membranaceae, pellucidae [forma ß: etibracteata m.], latissime cor- 

 dato-ovatae ad suborbiculares, obtusissimae ad levissime emarginatae, infra cum floris parte basali ad 

 2- 5 mm connatae, v glabriusculae v. imprimis in nervo mediano minutissime rufohirtulae, gracile et valde 

 dense nervatae; bracteae fructigerae usque 15 mm lg. et f eadem latitudine (14 ;;;/;/), subscariosae, pallide 

 brunnescentes, valde fragiles, nervis v. brunneis v. fuscis. 



Perianthia 8— 13 mm lg., ex Cavanilles viridescentia cum limbo fla\o, tubo e basi lata (3 mm lt.), 

 ovatoconica sursum angustato et sub limbo paukmi sed distinctius contracto, superne angustius cylin- 

 drico (1 -5 ;;;;» lt.), v. glabro v. parce tenuissime puberulo, subaequale 10 ner\-ato, nervis primariis in 

 lobos excurrentibus ceteris paululimi magis prominentibus, omnibus viridescentibus, limbo 5 — 7 ;;;/;/ lt., 

 lobis brevibus, ovatis, acutiusculis (1 mm lg. et lt.), commissuris maiusculis, lobis paulum brevioribus, latc 

 truncatis, paulum emarginatis, cum lobis nee papillosis nee timbriatis, paulum puberulis. 



Stamina 5 — 8 (rarissime 4), cupula cyathiformi, \ ■ 5 mm \g., filamentis longioribus 8— 10 ;»;// lg., 

 brevioribus 6 — 8 niiii lg., antheris c. 1 mm lg., paiilo angustiorihus. 



Germen (6 — 7///;;/ lg.) o\-ario oblongo (3-5 — 5 mm : 1 -5—2 mm), basin versus modice angustato, 

 stylo (2 — 2 '5 min lg.) crassiusculo, curvulo, per totam longitudinem unilaterale stigmatoso. 



Anthocarpia oblongo-obovoidea {6 — 7mm : 3'5 ;;/;;/), pei-ianthio supero marcescente, non spiraliter 

 torto diutius coronata, griseobrunneola ad lutescentia, tenuiter papyracea, fragilia, apice post exsic- 

 cationem fissa, parcius et minute hirtula ad glabra, basin \ersus angustata, in vertice siibrotLinda ad obtusis- 

 sima, nervis 10(— 12) gracilibus, paulum prominentibus, aequaliter a basi ad verticem percursa, inter ner\'os 

 levissime et irreguläre rugulosa. 



