296 MR. BENTHAM ON THE GENUS 



Henriquezia, Spruce. Benth. in Hook. Kew Journ. Bot. vol. vi. p. 338. 

 (Genus e familia Bignoniacearum.) 



Calyx basi turbinatus ovario adhaerens, limbo supero, 4-fido v. 4-partito, circumscisse deciduo. Corolla 

 oblique infundibularis, fauce ampla, limbo 5-lobo, laciniis subaequalibus, sestivatione bilabiata. 

 Stamina 5, corolla breviora, 2 inferiora caeteris paullo breviora ; antherae subaequales, lineari-oblongae, 

 omnes fertiles. Ovarium per anthesin inferum, disco carnoso breviter cupulato v. annulate coro- 

 natum, biloculare, post anthesin semisuperum. Ovula in quoque loculo 4, axi coUateraliter affixa, 

 horizontalia v. subadscendentia. Stylus filiformis, apice bilobus, lobis seu lamellis lineari-oblongis, 

 complanatis, intus stigmatosis, mox revolutis. Leyumen compressum, lignosuni, bivalve, valvulis 

 integris, dissepimento lineari valvis contrario, maturitate diviso. Seniina in quoque loculo 4, magna, 

 plano-compressa, hilo lineari affixa. Testa tenuis, laxiuscula. Cotyledones subcarnosae, basi profunde 

 bilobae. 



Arbores Brasiliae borealis et Venezuelae. Folia 3-5-natim verticillata, coriacea, integerrima, pennivenia. 

 S^(iB«/« lineares V. lanceolatae, rigidaSjCaducae. Flores speciosi, in paniculas densas terminales dispositi. 



1. Henriquezia verticillata, Spruce, I. c. ; foliis subquinis anguste oblongis sub- 

 acuminatis basi acutis, venis primariis valde obliquis subtus prominentibus, calycis 

 4-fidi laciniis lanceolatis, corolla extus cano-sericea. 



Arbor pulcherrima, 50 ad 100 pedes alta, trunco 4 pedes crasso, ramis summis fastigiatis subquinatim 

 verticillatis, ramulis inflorescentiaque ferrugineotomentellis mox glabratis. Folia pleraque 5-natira 

 verticillata, petiolata, in speciminibus suppetentibus 8-10 poll, longa, 2-2| poll, lata, inferiora vero- 

 similiter majora, obtusiuscula v. breviter et acute acuminata, integerrima, basi cuneato-acuta, glaber- 

 rima, coriacea, supra nitidula, subtus costa media venisque primariis obliquis valde elevatis percursa, 

 rete venularum vix conspicuo. Petiolus ^-l-pollicaris, basi dorso sub insertione cicatrice stipularum 

 deciduarum signatus. Stipulas ipsas non vidi. Punicula terminalis, intra folia summa subsessilis, 

 late thyrsoidea, ferrugineo-tomentella, ramis crassis subcompressis verticillatis et dichotome cymi- 

 feris. Calyx incurvus, crassus, circa 6 lin. longus, extus ferrugineo-toraentosus, intus sericeus, limbua 

 ad medium divisus in lacinias 4 lato-lanceolatas acutas aestivatione vix imbricatas, quarum infiraa 

 parum latior. Corolla sesquipollicaris, extus tomento sericeo appresso in sicco canescens, in vivo 

 rosea, intus alba, glabra, exceptis laciniis puberulis et serie pilorum flavicantium secus lineam 

 mediam labii inferioris, necnon pilis nonnullis ad basin faucis. Stamina glabra, infra medium tubi 

 inserta. Anthera longas, medifixEe, biloculares, longitudinaliter dehiscentes. Stylus basi glaber, 

 apice in lamellas oblongas hirto-stigmatosas divisus. Discus epigynus brevis, crassiusculus, pubescens. 

 Capsula non visa. 



One of tbe finest trees met with by Mr. Spruce in bis voyage up tbe Rio Negro in 

 December 1851. It was frequent in tbe Gap6, from above Barraroa to San Gabriel do 

 Cacboeiras. 



2. Henriquezia obovata, Spruce, MS. ; foliis quaternis obovato-oblongis obtusis retu- 

 sisve basi rotundatis cordatisve, venis primariis subtransversis subtus valde promi- 

 nentibus, capsula transverse oblonga. 



Arbor 40-60-pedalis. Stipula lanceolatse, juniores 4-5 lin. longse, a foliis adultis jam deciduae. Folia 

 (sec. Spruce) constanter quaternatim verticillata, 4-5 poll, longa, 2i-3 poll, lata, venis primariis 

 a costa multo magis divergentibus quam in H, verticillata. Flores ignoti. Capsula 2i poll, longa, 

 4 poll. lata. Semina 1^ poll. lata. 



