116 



ornata, prope paginam superiorem fibris sclerenchymaticis (in P. riparia parcis) instructa; 

 epidermis mucigera. (Species in Americae subaequatorialis parte occidentali indigenae.) 



A. Capsula spinis longis (capsulae diametrum subaequantibus) dense echinata, mesocarpio 

 compacto 



a. Capsula conspicue stipitata; foliola longius acuminata, reticulato-venosa (sp. 

 brasiliensis) 66. P. paullinioides Radlk. 



b. Capsula subsessilis ; foliola breviter acuminata , subclathrato-venosa (sp. novo- 

 granatensis) 67. P. granatensis Radlk. 



B. Capsula spinis brevioribus laxe ecbinata, mesocarpio spongioso; foliola (ut in P. grana- 

 tensi) breviter acuminata, subclathrato-venosa (sp. peruviana) 68. P. riparia Radlk. 



Sectio VII. Xylopülon Radlk. 11. cc. Capsula tricarinato-alata vel apice divaricato-trialata, 

 longius breviusve cuneata vel clavata, basi in stipitem breviorem attenuata (cf. Fig. VII), 

 pube brevi induta, mesocarpio (alisque) nervorum multitudine fibroso, Capsula sicca inde 

 sublignosa alaeque crassae lignoso-rigidae , endocarpii sclerenchymate alas non ingrediente; 

 semina e trigono obovata, pilosa vel glabra, arillo dorso fisso usque ad medium obtecta; 

 embryo (junior) oleosus ; flores sat robusti, sepalis subcoriaceis, omnibus liberis vel 3. et 5. 

 (in P. venezuclana) basi vel fere usque ad medium connatis; thyrsi solitarii vel panicu- 

 latim congesti; corpus lignosum simplex; folia ternata vel 5-foliolato-pinnata, petiolo rhacliique 

 nudis; foliola glandulis curvatis, in 1 specie (P. venesuelana) malleoliformibus ornata; epi- 

 dermis non mucigera. (Species Americae meridionalis continentalis cisaequatorialis incolae.) 



A. Fructus carinatus 



a. Folia ternata (capsula ex oblongo cuneata , alis angustis vel carinis potius per 

 totam fere capsulae longitudinem decurrentibus; sp. novogranatensis) 



69. P. turbacensis Kunth. 



b. Folia 5-foliolato-pinnata (Capsula per totam longitudinem tricarinata; sp. vene- 

 zuelana) 70. P. venezuelana Radlk. 



B. Fructus alatus ; folia 5-foliolato-pinnata (capsula ex obovato breviter clavata vel pyri- 

 formis, alis e superiore capsulae parte emergentibus , late patentibus, corniformibus ; 

 sp. guianensis) 71. P. tricornis Radlk. 



Sectio VIII. Neuroptilon Radlk. 11. cc. Capsula apice trialata, ellipsoidea vel pyriformis, 

 brevius longiusve stipitata (cf. Fig. VIII), glabrata, mesocarpio (alisque) nervorum multi- 

 tudine fibroso, capsula sicca inde sublignosa, alis crassiusculis striato-nervosis cartilagineo- 

 flexibilibus divaricatis, endocarpii sclerenchymate alas non ingrediente; semina ovoidea, 

 glabra, arillo dorso fisso usque ad medium obtecta; embryo oleoso-farinosus, cotyledonibus 

 crassis oblique superpositis; flores sat robusti, sepalis subcoriaceis, 3. et 5. fere usque ad 

 apicem connatis; thyrsi solitarii vel paniculatim congesti; corpus lignosum simplex; folia 

 ternata vel 5-foliolato-pinnata, petiolo rhachique nudis, stipulis insignibus subulatis; foliola 

 prominule reticulato-venosa, glandulis malleoliformibus ornata; epidermis mucigera. (Species 

 antillanae.) 



A. Folia ternata 72. P. neuroptera Radlk. 



B. Folia 5-foliolato-pinnata 73. P. Vespertilio Sw. 



Sectio IX. Cryptoptilon Radlk. 11. cc. Capsula anguste trialata, subglobosa, estipitata, 

 inter alas undique plicato- verrucosa, verrucis altitudine alas subaequantibus indeque occul- 

 tantibus (cf. Fig. IX), mesocarpio parenchymatico paucinervi, nervis verrucas ingredientibus 



