60 Contributions from the Gray Herbarium 



a. Sepals densely ciliate, b. 

 }). wings densely ciliolate, c. 

 c Branches of inflorescence puberulenl to densely Btri- 

 goee, d. 

 d. Seed pilose-tomentosej capsule 8 mm. long, 10mm. 



wide 74. P. floribunda. 



d. ^i'rd gray-pilose, not tomentose; capsule 7 nun. 



long, 7.5 nun. wide 75. P. sphaerospora. 



c. Branches of inflorescence subtomentose 70. P. Securidaca. 



I). Wings glabrous or minutely glandular-ciliolate, e. 



i . Wings 12 1 5 nun. long 77. P. apopetala. 



I . Wings 7 8 nun. long 78. P. hondurana. 



a. Sepals sparsely glandular-ciliate; wings glabrous 79. P. tonsa. 



71. P. floribunda Benth. Frutescent, branched, erect, 1-1.6 

 m. high, the stems and branches sparsely or densely pubescent with 

 more or less incurved or somewhat spreading hairs of unequal 

 Length, occasionally strigillose. Leaves ovate, acute or shortly 

 acuminate, mucronate, cuneate or rounded at base, chartaceous at 

 Length coriaceous, finely reticulate (lateral nerves 9-10 pairs), green 

 above, paler and finely whitish-maculate beneath, rather sparsely 

 strigillose or at length glabrate on both surfaces, 3.5-9.2 cm. long, 

 1.2-3.8 cm. wide, on petioles 3-7 mm. long. Racemes rather loosely 

 many-flowered, up to 2.3 dm. long, axillary and terminal, rarely 

 branched, the axis and pedicels (8-13 mm. long) varying from 

 appressed-puberulous to shortly subspreading-pilosulous. Flowers 

 violet-purple. Sepals subequal, obtuse, oval, very densely ciliolate, 

 very sparsely pubescent dorsally, 3.8 mm. long. Wings suborbicu- 

 lar, rounded at apex, abruptly short-clawed at base, rather strongly 

 venose, ciliolate, otherwise glabrous, 8-11 mm. long, 8-10 mm. 

 wide. Keel ciliate on claw, 9-10 mm. long. Upper petals obovate, 

 ciliate above toward base, 8 mm. long. Lateral petals present, 

 lanceolate, 1.5 mm. long. Capsule ciliolate, otherwise glabrous, 

 distinctly stiped, transversely broad-oblong, strongly obcordate, 

 reticulate, 8 mm. long, 10 mm. wide. Seed (with aril removed) 

 globose, not compressed, pilose-tomentose, 3-3.5 mm. in diameter. 

 Aril 2 mm. long, thick, fleshy-coriaceous, somewhat excavated 

 laterally, sparsely pilose. Benth.! PL Hartw. 58 (1840); A. W. 

 Benn. Journ. Bot. xvii. 141 (1879); Chod. Monog. ii. 64. t. 15. f. 

 39-40 (1893). P. americana { . floribunda (Benth.) Ktze. Rev. i. 48 

 (1891). Chiapas: pine forests, Pueblo Nuevo, Feb. 1840, Lin- 

 den 172 (K) ; walls of temple at Zonaguia, Hartweg 447 (type coll. : 

 BK); without definite locality, 1843-44, Jurgensen 541 (BGK), 

 Ghiesbreght 22 (G), 737 (G). Mexico without locality; Jurgensen 



