﻿s 



370 MR. G. BENTHAM ON THE MIMOSE^. [Piptadenia 



23. P. BOLiviANA, Benth. Inermis, tomentella. Pinnae S-G-jugse; foliola falcata, 

 convexiuscula, 1-nervia, costa submarginali, 2-linearia. Spicse 1-1 J-pollicares. 



Sab. Bolivia, Kelly (a specimen originally in Herb. Lambert, now at Kew). 



P. riffida certe valde affinis^ diversa tamen videtur pube v. tomento minuto in ramulis petiolis inflo- 

 rescentia foliolisque novellis rufescente, et foliolis dimidio minoribus costa sola subtus conspicua, Legu- 

 men adhuc ignotum. 



24. P. APRiCANA, Sook. f. I Fl. Nigr, 330. Inermis, tomentella. Pinnae 10-13-jugae ; 

 foliola falcata, nitida, plano-concava, enervia, subtus obscure striolata, sub-3-linearia. 

 Spic9B 3-1-pollicares.— 0/i». .' Fl. Trop. Afr. ii, 328. 



FLah. Tropical Africa : Upper and Lower Guinea, also apparently the same species on 



tlie Zambesi, Kirh. 



Evidently much more nearly allied to the two preceding species than to either of the other Old-World 

 Piptadenia. 



25. P. TRISPERMA, JBenth. I in Hook. Journ. Bot. iv, 337. Scandens, aculeis sparsis 

 V. raris recuryis infrastipularibus. Pinnae 3-6-jug3e ; foliola obliqua, nitida, 3-6 lin. longa, 

 margine nerviformi cincta, costa parum excentrica. — Fl. Bras. Mini. 



Mimosa 



Mart. ! Herb. Fl. Bras. 108. 



JIab. Tropical America : Brazil, prov, Eio Janeiro and Bahia. 



26. P. POLTPTEUA, Benth. ! in Mart. Fl. Bras. Mim. Scandens, aculeis recurvis 

 frastipularibus minimis. Pinnae 10-15-jugse ; foliola sub dimidiata, nitida, 2-3 lin. Ion 

 marc^ine nerviformi cincta, costa valde excentrica. 



o 



1 



Hab. Tropical America : Brazil, prov. Bio Janeiro. 



27. P. COMMUNIS, Benth. I in Sook. Journ. Bot. iv. 337. Arborea v. fruticosa, aculeis 

 ad angulos v. alas ramorum parvis rectis v. incurvis. Pinnse 5-12-juga3 ; foliola falcata, 

 nitidula, 2-4 lin. longa, immarginata, costa parum excentrica. Spicse axillares v. breviter 

 racemosoB. — Fl. Bras. Mim. 



Acacia ffonoacantha, Mart. ! Herb. Fl. Bras. 109. 

 Acacia callosa, Spreng, Syst. iii. 138 ? 



Bab. Tropical America : ;Brazil, prov. Rio Janeiro, San Paolo, Bahia, Piauhy, Per- 



nambuco . 



F 



28. P. PTEHOCLADA, Benth. Arborea, aculeis ad angulos v. alas ramorum paucis parvis 

 rectis. Pinnse 12-18-jugae; foliola falcata, nitida, 3-4 hn. longa, immarginata, costa 

 parum excentrica. Spicse longe racemos^e. 



Sab. Troj)ical America: Eastern Peru, woods and campos near Tarapoto, Spruce, 



4536 



trunco inermi, undique glaberrima v. rhachi 



Aculei 



puberula. Eamuli novelli subteretes, annotini sapius anguhs 4^5 



ad angulos pauci, breves, basi lati, in speciminibus recti. Foliorum petiolus communis 8-10 poU. longus, 



-<J-d.pollicares. Glandula ad basin pctioli oblonga, parva, elevata, nunc obscura, ad juga superiora 



2-^ pinnarum parvae, ad foliolorum 

 marginibus nt in P. r\ 

 rhachin racemi v. par 

 lineam longa. Legu 



lineari 



Spicae tenues^ ad 3 poll, longse, secus 

 culatse. Calyx \ lin. longus. Corolla 



