40 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[VOL. 10 



2. Stamen connectives anteriorly appendaged. 



3. Connectives basally glandular-lobed ; leaf primary veins above at maturity nearly 



or quite glabrous. M. matthaei Naud. 



3. Connectives basally with a cordiform appendage; leaf primary veins above per- 



sistently setulose. M. tschndyoicles Cogn. 



2. Stamen connectives anteriorly not appendaged. 



4. Calyx lobes scarcely evolved, 0.3 mm high with concave sides; leaves distinctly 



crenulate. M. lappacea (DC.) Tr. 



4. Calyx lobes well developed, 0.5-2 mm high with convex sides; leaves entire to 

 indistinctly crenulate. 

 5. Leaves ovate-elliptic, broadly acute to obtuse at the base, the length/width 

 ratio 2-2.5, the upper leaf surface evenly pubescent; calyx lobes 0.8-2 mm 

 high. M. hracteata (DC.) Tr. 



5. Leaves narrowly elliptic, narrowly acute at the base, the length/width ratio 

 3-4.5, the upper leaf surface (apart from the primary and secondary veins) 

 glabrous; calyx lobes 0.5 mm high. M. abysmophila Wurdack. 



Miconia ceramicarpa (DC.) Cogn. var. navioensis Wurdack, var. nov. 



A var. candolleana Cogn. differt foliis paulo minoribus subtus intense pur- 

 purascentibus pilis hypanthii brevioribus. 



Folia 7-11 X 3.5-5 cm subtus purpurascentia densiuscule pilosula pilis ca. 

 0.3-0.4 mm longis. Hypanthium dense cum setulis patulis 0.5-0.7 mm longis 

 hirsutum. 



BRAZIL : Amapa : Serra do Navio, abundant on southeast lower slopes of Chumbo Ore 

 Body, alt. 150 m ; herb rooting along stem, covering forest floor densely, leaves dark green 

 above and purple beneath, petals rose, stamens white, fruit rose; 1 Nov 1954, B. S. Cowan 

 38075 (holotype, NY) ; Serra do Navio, Water Supply Dam along trail to Serra do Viado, 

 Coican 38390 (paratype). 



In the typical variety of M. ceramicarpa and in var. violacca (DC.) Cogn., 

 the stem pubescence is appressed and the appressed lower leaf surface pubes- 

 cence is limited to the veins and venules. In var. candolleana, the apparently 

 concolorous mature leaf blades are 12-16 X 5-8 cm and the hypanthial hairs are 

 1-1.5 mm long; it is represented, apart from the syntypes, by Cowan 38386 from 

 the lowland forest near Serra do Navio. 



Miconia borjensis Wurdack, sp. nov. 



M. aulocalyci Mart, ex Tr. et M. abbreviatae Mgf. affinis sed cum floribus 

 maioribu* plerumque 6-meris. 



Sect. Miconia. Rami superne leviter compressi vetustiores teretes juniores cum 

 petiolis inflorescentiis hypanthiisque sub lente dense adpresseque stellato-sub- 

 lepidoto-pubescentes. Petioli 1.5-2 cm longi; lamina 8-15 X 2.5-5 cm anguste 

 ovata vel ovato-elliptica apice sensim acuminata basi late acuta tenuiter 

 coriacea vel membranacea ad margines indistincte serrulata serratulis tenuibus 

 ca. 2 mm inter se distantibus 3-ner^ata vel indistincte 5-nervata (propterea 5- 

 plinervata nervis interioribus duobus 2-3 mm supra basim insertis) nervis 

 secundariis supra vix impressis vel obsoletis subtus leviter elevatis, tertiariis 

 vix evolutis cum areolis magnis laxis, supra glabra, subtus dense vel densiuscule 

 adpresseque albido-stellato-sublepidoto-pubescens. Paniculae 3-10 cm longae ramis 

 trifloris vel simpliciter furcatis cum ramulis plerumque trifloris; flores pler- 

 umque 6-meri rare 5-meri plerumque 1-2 mm pedicellati ad basim hypanthii 

 bibracteolati bracteclis caducis linearibus 5 X 0.9-1.6 mm. Hypanthium (ad 

 torum) ca. 3 mm altum ; calycis tubus 1.4-1.5 mm altus apice truncatus extus 



