Gustavia romeroi Mori  and amp; H. García-Barriga, sp. nov. / Distribution / Additional material examined / Local names / Ecology /Comments.Gustavia romeroi Mori  and amp; H. García-Barriga, sp. nov. / Distribution /  Additional material examined / Local names / Ecology /Comments

García-Barriga, H.

Mori, Scott

Caldasia

Spanish

Gustavia romeroi Mori & H. García-Barriga, sp. nov. / Distribution / Additional material examined / Local names / Ecology /Comments

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A new Colombian Species of Lecythidaceae

Universidad Nacional De Colombia - Repositorio Institucional UN

A NEW COLOMBIAN SPECIES OF LECYTHIDACEAEBySCOTT MOil! ':'ANDH. GAllciA·P,AIlIlI(;_~ ,....':' Department of Botany, University of Wisconsin, Madison, Wisconsin, U. S. A.,":' Institute de Ciencias Naturales, Universidad Nacional, Bogota, Colombia.Gustavia romeroi Mori & H. Garcia-Barriga, sp. nov. Fig. 1 A, B, C, D.Arbor ad 18 ru alta, truncus 40 em diametro, rami vero 3-5 em dia-metro sursum arcuati; folia laxe aggregata ad ramulorum apicem. Cortexbrunneus, leviter fissuratus. Laminae coriaceae, ellipticae, apice hreviteracuminatae, integrae, basi acutae, 17.5-21.0 em longae, 6-7 em Iatae, gla-brae, venis lateralihus utroque latere 12-14; petioli 1.5-3.5 em longi, 1·2mm crassi, subteretes, Lnilorescentiae caulinares, racemosae, contractae,4-5 florae; rachis 0.7-1.5 em longa; pedicelli 2.5-4.5 em longi, ad hasimhractea caduca aucti, insuper et hracteis aliis 2 ovatis persiatentibus, 2-4rum longis et 4-5 mm latis infra hypanthium orientibus. Flores plene ex-plicati 8·12 cm diametro; hypanthium ecostatum, albo tomento praeditumatque ruhellis hrunneis lenticellis, 4· loculatum; lobi calycis 4, rotundatiplus minusve cucullati, 2-4 mru longi, 7-10 mill Iati, viride-Ilavi ; petala(11) 12 (18), ohlongo-ohlanceolata, 3.5-7.0 em longa, 2.0-2.5 cm lata, pu-herula, alba, ad apicem leviter rosea; androphonnn 1.5·3.0 cm diametro,hasi connata 0.7-1.4 em alta; filamenta extern a 1.2-2.0 cm longa, ad hasirnflava versus apicem rosea ; antherac 2.0·2.5 nun longae, flavae; ovarii ver-tice alho-tomentoso; stylus ] -2 mm longus, stigma -l-Iobatum. Fructus ig-notus.Medium. sized tree up to 18 III taU and -10 em DBH; the leaf hearinghranches 3-5 mm in diameter, arch ing upwards. Ba.rk brown, lightly fis-sured. Lea] blades elliptic, the apices acuminate, the margins entire, thebases acute, 17.5-21.0 ern long, 6-7 Clll wide, glabrous, with 12-14, lateralveins, coriaceous ; the petioles 1.:'1·35em long. 1-2 mm thick, subterete.52 CALOASIA,VOL.XI, N'? 53 FEBRERO DE 1975Inflorescences cauline, contracted racemose, 4-5 florae; rachis 0.7-1.5 emlong; pedicels 2.5·4.5 ern long with a single caducous bract at the baseand two ovate, persistent bracteoles 2·4 mm long, 4,·5 nu 1 wide insertedbelow the hypanthium. Flowers 8·12 em in diameter when expanded; hy-panthium without wings and with a white tomentum of simple usually 2·5celled living hairs and with reddish brown lenticels, 4.loculate; 4 calyxlobes, more or less cucullate, 2·4 mm long, 7-10 mm wide, greenish yelJow;petals (11) 12 (18), ohlong-oblanccolate, 3.5·7.0 em long, 2.0-2.5 cm wide,puberulous, white, slightly pink at the apex; androphore 1.5·3.0 cm indiameter, the connate base 0.7-1.4 cm high, outermost filaments 1.2·2.0em long, yellow at the hase, rose at the apex; anthers 2.0·2.5 mm long,yellow; summit of the ovary white tomentose; style 1·2 mm long; stigma4-lobed. Fruit unknown.Tvr-us . Colombia, Santander, Campo Capote (6° 38' N, 73° 55' W)and vicinity, Compartment 82, alt. 100·200 m, 9 jul. 1971, Nee and Mori4303, fI. (Holotype: COL; Isotypes: BM, COL, F, MO, NY, US, VEN,WIS).Distribution. Apparently confined to the Magdalena Valley of Co-lombia.Additional material examined. COLOMBIA.Santander. Vicinity ofBarrancabermeja, Magdalena Valley, between Sogamoso and Carare Ri-vers, alt. 100·500 m, 28 oct. 1936, Hctught 2042, fI. (NY, US) ; MagdalenaValley, Cimitarra, 1 sep, 1954, Lamb 186, fl. (US) ; 10 leguas al SE de Ba-rrancabermeja, a 8 kms de la margen izquierda del Rio Opon, alt. mas 0menos 200 m, 26 ago. 1954, Romero-Castoiieda 4708, fI. (COL. US), 3 sept.1954, Romero-Castaiieda 4819, fI. (COL, US) ; 12 leguas al SE de Barran-caberrneja, a 5 kms de la margen derecha del Rio Opon, alt. 200 m, 29sept. 1954, Romero-Castaneda 4960, fI. (COL, US).Local names. Coco hediondo (Lamb 186), Mula muerta (Romero-Castaneda 4708, 4960).Ecology. A medium sized forest tree usually at elevations around 200or less meters but possibly found at up to 500 meters. The 6 floweringcollections have been made between July and October with ~ of thesecollected in September. Fruits of the species are not yet known.Comments. This species differs from all other Gustavia species byhaving 12 or 16 petals. The usual petal numher in the genus is 6 or 8. Thecauline inflorescences, upward curving pedicels (Fig. I-B), and the red-dish brown lenticels on the hypanthium and pedicels are also diagnostic.A short time after heing cut the wood emits a fetid odor. This smellis alluded to in the common names (Coco hediondo = evil smelling coco,Mula muerta = dead mule) .MORI & GARciA: A NEW COJ.OMBIAN SPECIES OF" LECYTHIDACEAE 53Vegetatively the closest relative to this species is Gustavia speciosawhich, however, has 6 (·8) petals and both terminal and cauline inflo-rescences. The syrnpatric G. santanderiensis is a small tree up to 5 m withgenerally 8 petals and terminal inflorescences. Custaoia nana, possiblyalso sympatric, is easily separated from G. romeroi by its smaller stature,8 petals, and straight pedicels. Other Gustavia species in the region arenot easily confused with this taxon because of their much larger leaves (G.spruceana, G. superba ) or because they have winged hypanthia (G. lon-gifuni<:ulata, G. pleurocarpa},Weare proud to dedicate this species to the memory of Rafael Ro-mero-Castaneda whose contributions to Colombia botany will long beremembered. Professor Romero-Castaneda was a researcher at the Insti-tuto de Ciencias Naturales from 1958 until the day of his death (Jan. 10,1973). He leaves several important publications as well as over 11.000plant collections from Colombia.F'G. 1. Vegetative, inflorescence, and floral character isties of G. romeroi, A. Leaves grou-ped at the ends 01 an upward arching branch. B. Cauline inflorescences with upward arching,Ienticellate pedicels. C. Flower closeup showing the mflexed stamens and 12 petals (there aresometimes 18 petals). D. Entire flower and a separate andr ophore. (A. photographed by ScottMori; B. C, D by Mikc Nee; all 01 the type. Nee ond. Mor! 4303).

A new colombian species of lecythidaceae

Gustavia romeroi Mori & H. García-Barriga, sp. nov. / Distribution / Additional material examined / Local names / Ecology /Comments.Gustavia romeroi Mori & H. García-Barriga, sp. nov. / Distribution / Additional material examined / Local names / Ecology /Comments

Mori Scott

García-Barriga H.

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A new Colombian Species of Lecythidaceae A new Colombian Species of Lecythidaceae

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A new colombian species of lecythidaceae

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