NO. 12 BEGONIACEAE CENTRALI-AMERICANAE — DE CANDOLLE 9 



papilliferis, ovario 3-loculari glabro, placentis bipartitis lamellis 

 utrinque ovuliferis ; capsulae ovatae 3-alatae glabrae ala maxima 

 horizontaliter triangulari apice subacuta, secunda fere conf ormi apice 

 magis obtusa, tertia multo minore marginiformi, seminibus minutis 

 ellipticis basi et apice rotundatis. 



Herba circiter 45 cm. alta, radix fibrosa, caulis ramosus inferne 

 usque ad 5 cm. crassus. Folia alterna. Limbi in sicco membranacei, 

 foliorum superorum 2 cm. inferorum 5.5 cm. longi et 1-2 cm. lati, 

 stomata in facie infera glomerulatim disposita, cystolitha et cysto- 

 sphaeria nulla. Petioli 1-11 mm. longi. Floris masc. sepala 3.5 mm. 

 longa et 2 mm. lata, antherae paullo ultra 0.5 mm. longae rimis 

 dehiscentes ; floris fern, pedicellus usque ad 2.5 mm., capsulae usque 

 ad 4 cm. longus, capsulae 3.5 mm. longae ala maxima 5 mm. longa. 



Panama : Along Charare River near Chepo, Province of Panama, 

 alt. 50-200 m.,H. Pit tier 4713. 



16. BEGONIA CAUDILIMBA C. DC, n. sp. 



Foliis e rhizomate longe petiolatis, limbo paullo supra £ longitudinis 

 suae peltato ovato apice longe et acute acuminato, superne 3-dentato, 

 supra glabro subtus ut petiolus longe piloso ; cyma in apice scapi longi 

 longe et parce pilosa dichotome ramosa, capsula sat longe pedicellata 

 ovata glabra 3-alata, ala maxima rotundata, stilis 3 persistentibus 

 inferne connatis superne bifidis, laciniis spiraliter papilliferis ; semi- 

 nibus minutis obovatis. 



Folia alterna. Limbi in sicco membranacei usque ad 19 cm. longi 

 et 8 cm. lati, stomata in facie infera 3-4-glomerulata, cystolitha nulla, 

 cellulae spiculares in mesophyllo crebrae. Petioli usque ad 20 cm. 

 longi. Scapus in vivo ruber, in sicco fuscescens, 45 cm. longus. 

 Pedicelli usque ad 12 mm. longi tenues, capsulae 8 mm. longae ala 

 maxima usque ad 8 mm. lata, placentae bipartitae. 



Panama : Forest along the Rio Indio de Gatun, Canal Zone, near 

 sea-level, W. R. Max on 4866. 



17. BEGONIA UDISILVESTRIS C. DC, n. sp. 



Omnino glabra ; foliis longe petiolatis, limbo oblongo-ovato basi 

 valde inaequilatera cordato apice longissime et acute acuminato, 

 margine praesertim superne acute serrulato, palmatinervio, petiolo 

 verruculoso ; cymis axillaribus quam petioli paullo brevioribus ; floris 

 masc. sepalis 2 rotundatis integris, petalis 2 obovatis integris, stami- 

 nibus liberis, antheris oblongis quam filamenta brevioribus ; floris 

 fern, trilobi lobis integris, 2 externis rotundatis tertio elliptico-lanceo- 

 lato, stilis caducis 3 inferne connatis superne bifidis, infra lacinias 



