389 



B-ROMELIACEAE : BILLBERGIA. 



^^0 



oppositis aut omnino liberis aut his ad ligulamm alti- 

 tudinem (nee ultra) connatis; antlieris introrsum biri- 

 mosc dehiscentibus, infra medium v. nonuuuquam iufima 

 basi dorsifixis; pollinis granulis poris uullis sed sulca 

 singula longitudinali praeditis rctique promluoutc ornatis, 

 ellipsoidcis. Ovarium solemuiter inferum sessile v. 

 brevissimc v. nonnunquam longiuscule stipitatum, ellip- 

 soidcum v. cylindricum v. crasse stipitiforme , apice 

 saepissime + constrietum, glabrum v. crebro dense 

 albo-farinosum, triloculare; placentis interno loculorum 

 aiigulo lineatim varie affixis; ovulis cc, obtusis, singulis 

 podio papillose inside n tibus ; tubo epigyno maximo in- 

 fundibuliformi V. urceolato; stylo antlieris longiore; 

 stigmatis lobis spiraliter valde contoi-tis. Bacca ex 

 ovario saepius insigniter aucto sacpius fore immutato 

 formata, peiianthii laciniis persistentibus coronata, in- 

 dehiscens. 



Herbae acaides, haphUotkae, oh florum praecipue- 

 qiie foliorum scapaHum colorem inslgnes. Folia dense 

 rosulata aut stibtus convergeniia tuhum v. urceohtm aqiiae 

 coeli recipiendae aptum formantia aut raro in caespites 

 ordinata e vagina plerumque optime evoJufa, intus lepi- 

 dota (nee villosa) in Jaminam. linealem, apice saepius 

 putridam ahhrevlatam, margine acuJeatam v. rarius inermem 

 angitstaia, adidta quoque utrinqm + alho-lepldota v. supra 

 suhgJabra, siddiis saepe vittis lepidotis transversalihus mani- 

 festis ornafa. Inflorescentia axibus soJemniter inde- 

 finitis V. raritis floribus spurie determinatis in scapi recti 

 V. saepius nutantis v. penduli, foliolis teneris semper 

 fere optime ruhentibus induti apice aut simplex spicata 

 vel floribus hrevissime pedlceUatis subracemosa vel pedi- 

 cellis permanifesfis racemosa aut e ramulis spicatis v. 

 subracemosis composita panniculata interdum ampla; 

 bracteae florigerae quaquaverse axibus affixae latere 

 semper liberae, integerrimae saepius minutissimae squami- 

 formes. FloreS speciosi saepissime indigotino-coloratt, 

 rarius ruhri v. virentes. 



Epipliytae vel rarissime terrestres Americam a Guiana 

 u?qne ad Brasiliam austnilem incoliiut; Antillis desunt. 



Obs. Subgenera nobis retinenda, jam pridem a cl. Lkmairb con- 

 stjtuta habitu ceite insignia, nam tamen revera naturalia? Observandum 

 quod hybridae, quibus genus abundat, vel inter species habitu alienissimas 

 summu facultate prot'eruntur. Ne B. viridijloram quidem, habitu inter 

 formas peculiarem et certissime ad Fitcairnias delegantem a reliquis in- 

 siguius separare licnit. 



CLAVIS SUBGENERUM ET SPECIERUM BRASILIENSIUM. 



A. Inflorescentia perdense albo-farinosa solemniter simplex elon- 

 gate cylindrice spicata; petala deflorata spiraliter revoluta 



Subgenus HELICODEA Lem. 



ir 



C- 



Floras piillidi, nreufi-albi. 



a, Sepnl:i apice late .-iciilius.ula et (^uamvis miuuU) mucronulata, 



1. Ovarium aeqnaliter albo-farinosum 



1. B. DBOOEA Pocpp. et EudL 



2. Ovarium sulcis lonRitndinalibus gUbris, sonlide 

 coeruleseentibus praeditum , . 2, B. Portrana Brongu. 



1>. Sepala apice solemuiter rotundata v. obtii^ 



5. B. ZEBRINA Lindl. 

 Floreii pulchre violacei 4. B, cTUNDaosxACHTA Mez, 



B. Inflorescentia perdense albo-farinosa solemuiter simplex 



floribus sessilibus, dense pyramidatimv.subcylindricespicaU; 

 petala defiorala rontortu, porrecta 



Subgenns JONGHEA Lem, 



a. Flonnu superiorum bracte;ie miuutae; folia mauilefite aculeata. 



1. Petala vlolacca. 



a. lullorescentia penuultiaora, c^liuarica 



6. fi. Li£oroLDi E. Morn 

 p, Inflorescentia pauciflcira, abbrcviata 



6. E HACBOCALTX Hook, 



2, Petala rubra; inflorescentia pyramidata \\ abbrrviafn 



7. B. PTRAMITIAMR Liodl. 



b. Hracteae omuino amphi^; folia fere inermia 



8, B. niTifi Mart. 



Inflorescentia farinosa v. crebrius glabra panniculata v. 

 simplex floribus subsessilibus , breviter v. longe pedicel- 

 iatis, iaxa; petala deflorata confort-a, porrecta 



Subgenus EUBILLBERGIA Mkz. 



I. Flores sessilea v, brevisaiiue pedict!llati. 



AA. lullorescentiae axes <'nni BppaUs dense albo-farinosi. 



a. Sepala apice eublruncata v, obtusa, 



1. Indoresceutiae rhachia t'onimuuis subrecta; 

 ligalae neetarifcrae regulariter nee profunda 

 incisae 9. B, Morkli Brougu, 



2. Infloicsccntiac rbacbis ijaam inaxinie genu- 

 flexa; ligubio profunde inciso finiliriatae 



10- B. EtTM^^MiAK E. Morr. 



b, Sepala aeutiuscula . • , 11. B, Poktjana Mez, 

 Bi>. 1 11 flores ten tiae axes cum sepalis glabri v. minute solum tomen 



lelli, saepius pruinosi. 



1. lullorescentia expresse panniculata v, raoiulia infimis l^floris, 



pcdicellos imituntibus tacemosae speciem praebeus; flurc8 



aumnii yuoyuc coiispicue bracLeoluti. 



cc. Bructeolac floruni summunim pereoaspteuae ibi ad V> 

 sallem ovarii lougiUuliuem aequanteR, 



• Sepala apice manifeste niucronata 



12. B. viTTATA Brongu. 

 ** Sepala apice baud mucronato. 



o Sepala perasymmetrica 



13. B. TwEEDiKANA Bak. 

 00 Sepala symmetrica v. pauUo solum asymmetritaL 



I Axes paullo tomentelli ; inflorascentia 

 basi solum cooiposite 



14. B. KLEOAK8 Mart. 



[I Axes glaberrimi ; inflorescentia nsqne 



•d apicem composita 



1&. B. SAiresRiAKA E, Morn 



r 



p. Bracteolae florum summorum minutae v. nuUae. 



• lullorescentia paucilloni; petala pulcher- 

 rimc coerulea . - 10, B. Reichardti Wawnk 



•• Inflorescentia multi- v. snhmnUifiora, 

 rarins depaupcratii; petala flara et apice 

 indigotino-maculnt* 17. B. spbgioba Thbj?. 

 2. Inflorescentia simplex spicata v. subracemosa. 



a, Bracteolae florum summorum lanceolatae v, ovatae longe- 



que acutae (longiores qnam latae). 



• Inflorescentia elongata, solemniter pen- 



dula; foUa margiuc uudulala 



18. B. iRiniFOUA Lindl- 



** Inflorescentia abhreviataj crecta; folia margine plana, 

 o Petala omnino indigotina 



19, B, LiBOKiANA de Jooghe, 



