162 



ii. Leaflets largo; sepals longer than the tube. 



Nissolia laxior (Robinson) Rose; Nissolia confertiflora laxior Robinson, Proc. Am. 

 Acad. 29:315. 1894. FIGURE 25. 



Apparently a good species. It is only known from the type collection ami the 

 fruit is still unknown. 



Collected by Mr. C. G. Pringle in a barranca near Bertram, State of Jalisco, Juno 

 5, 1898 (No. 4379). 



bb. Flowers usually (or always) in naked racemes; calyx teeth very small. 



k. Calyx truncate with small linear teeth. 



Nissolia guatemalensis Rose, ap. nov\ 



Probably a shrubby vine; the younger parts somewhat pubescent; leaflets lanceo- 

 late, rounded at base, slightly tapering but obtuse at apex, mucronate, glabrous 

 above (at least in age), puberulcnt beneath; flowers in racemes; calyx small, 2 to 

 2.5 mm. long, truncate with small linear teeth much shorter than the tube, becoming 



nearly glabrous; pods on slender stipes twice as 



long as the calyx, 35 mm. long, the terminal wing 



acute. 

 Collected in Guatemala by Sutton Hayes, near 



Esquintla, November, I860 (specimen in Herb. 



Gray), and by Heyde& Lux. near Cuajiniquilapa, 



in 1893, and distributed by John Donnell Smith 



as No. Gil 2. 



kk. Calyx not truncate; teeth triangular. 

 1. The terminal winy of fruit obtuse. Mexican species. 



Fid. 25 



-Xissolia laxior. 



Nissolia nelsoui Rose, sp. nov. Figure 20. 



Shrubby vine climbing 3(i to 45 dm. high, gla- 

 brous or younger parts pubescent; leaves large; leaflets 5, nearly glabrous in age, 

 oval to obovate, rounded or acute at apex, broadly cuneate or rounded at base, 2.5 

 to 7.5 cm. long, 16 to 36 mm. broad; flowers in terminal or axillary racemes, 15 to 25 

 cm. long in fruit; calyx cup-shaped, 1 mm. long, puberulent, the minute teeth tri- 

 angular; corolla (5 mm. long, pale yel- 

 low; banner orbicular, horizontal, re- 

 tuBe; ovary pubescent; fruit 2 or 3 

 jointed, the upper joint broadly winged, 

 obtuse, 18 to 25 mm. long, 8 to 10 cm. 

 broad. 



Collected by Mr. E. W. Nelson from 

 the Valley of Oaxaca, September 20, 

 1894 (No. 12015); by Mr. C. G. Pringle, 

 May 19 and August 17, 1894 (No. 4040); 

 and by Mr. E. W. Nelson near Tuxtla, 

 State of Chiapas", September 1 to 8, 1895 

 (No. 308(5). It is probably, also, Pour- 

 goau's No. 1177, collected in the valley 

 of Cordova. 



Flowering specimens collected by 

 Rev. Lucius C. Smith at Colderon, San Juan del Kstado, June, 1894, and by Mr. 

 Henry E. Seaton near Cordoba, August, 1891, have somewhat different leaves and 

 suggest X. frulicosa. Petter material may show that they belong elsewhere. 



This species differs from X. frulicosa in the shape of the leaflets, and in the calyx 

 and fruit. 



Fig. 2C. — Nissolia ntlsoni. 



