2io The Waterliues. 



Nymphaea tenerinervia Caspary. (Plate XXI.) 



Sepals with a few scattered linear black marks, ovate-oblong, shortly acuminate, 

 sub-acute. Petals 16 (?), sub-membranaceous, outer ones oblong, innermost sub-lan- 

 ceolate, acute. Stamens about 40, three- fourths as long as the petals; outer filaments 

 petaloid, median filaments about as wide as the anthers, innermost filaments very short 

 and slender. Carpels numerous; styles short (5 mm. long), clavate, 1 mm. in diam- 

 eter above, incurved. Leaves ovate-cordate, entire, sub-acute, narrowly peltate, slightly 

 coriaceous ; lower surface usually with small, black, oblong, radially placed spots ; lobes 

 distant, obtuse, inner margin convex. Top of peduncle and petiole, and thence down- 

 ward on petiole, clothed with slender multiseptate hairs. 



Nymphaea tenerinervia, Caspary 1878, plate 36, and MS. in bbb. Munich, Berlin, etc. 



N. tenuinervia, Caspary, 1. c. in text. 



N. pulchella, Lehmar.n MS. in hb. Konigsberg. Not DeCandolle 1821 b. 



N. Maximiliani, Lehmann 1853 a, as to the leaf ; flower is of N. odorata gigantea, q. v. 



Description. Flower 86 to 89 mm. in diameter, or larger. Sepals 15 to 20 

 mm. wide by 41 to 51 mm. long, subcoriaceous, sub-translucent, shining. Innermost 

 filaments narrower than the anthers. Veins of leaf immersed beneath, the midrib alone 

 prominent ; lobes slightly produced. 



Geographic Distribution. On St. Francisco River, province of Bahia, Brazil 

 (40 W., 9 50' S.), near Joazeiro, collected by Martius, April, 1819. 



Nymphaea oxypetala Planchon. (Plate XXV.) 



Sepals without striae, lanceolate, oblong below, long caudate-acuminate, apex 

 twisted or hooked. Petals 20 to 30, shorter than the sepals, lanceolate, acuminate, 

 very acute. Stamens 84 to 106 or more, outermost lanceolate with filaments 4 times 

 wider than anthers, inner ones linear, innermost with filament about as wide as anther. 

 Carpels 20 to 28, styles very long, linear-clavate, 24 to 26 mm. long. Submerged 

 leaves alone known ; thin, membranaceous, sub-lunate-reniform, sub-hastate or obovate, 

 cleft at base, not peltate; lobes very long; margin subrepand, slightly crisped; pri- 

 mary nerves 3 to 7 on each side; petiole slender. 



Nymphaea oxypetala, Planchon 18526; 18530 and b. Caspary 1878. 

 N. Raja, Lehmann 18530 and b; 1854 (name only). 



Description. Flower 123 to 160 mm. across. Peduncle slender. Sepals 11 to 

 17 mm. wide by 61 to 74 mm. long. Outer stamens short-appendiculate (1.5 mm.), 

 acute ; inner ones obtuse ; all the anthers longer than the filaments. 



Geographic Distribution. Guayaquil, Ecuador (2n'25" S., 7959'io" W.), 

 coll. Jameson, March, 1845, No. 334. Types seen in hbb. Delessert, Boissier, British 

 Museum, Berlin. 



Nymphaea gibertii (Morong), new comb. 



Leaves oval, entire, rounded at apex ; lobes moderately spreading, obtuse ; under 

 surface covered with short branching fuscous lines. Flower white, inodorous, 6 to 7 

 cm. in diameter. Sepals oblong-ovate, 3 to 3^ cm. long, somewhat acute, with num- 

 erous fuscous lines on outer surface. Petals in 3 series [12], a little shorter than the 



