46 TRAXSACTIONS AND PROCEEDIXGS OF THE [Skss. lviii. 



names of which I owe to Mr. II. A. liolfe. My own work 

 has been limited to merely adding a few notes as to 

 locality, and other details of interest. To Professor Bayley 

 Jxilfour I would also wish to record my deep gratitude 

 for the interest he has shown throughout, both in the 

 conduct and in the results of the Tilcomayo Expedition. 



Clematis boxariensis, DC. 



Hab. — Banks of liio Paran;i. Colonia Hernanda. Fl. 

 Jan. 



Cissampelos Pareira, L. 

 Hab. — Ptio Pilcomayo. 



A^ICTORIA CRUZLAXA, d'Orb. 



Hab. — Lateral lagunas of Pdo Paraguay. 



Maiz del Arjua, Yrupe. 



Leaves 4-6 feet across ; rim 3 inches high ; upper 

 surface smooth, dark green ; lower divided into quad- 

 rangular compartments, bright carmine. Flowers said to 

 be about a foot across, pinkish violet, and with beautiful 

 scent. As the name Maiz del Agua indicates, the pro- 

 vincials use the seeds for food. 



Capparis retusa, Griseb. 



Hab. — Monte, near Fortin Page. 



Capparis Tweediana, Eichl. 



Hab. — In the montes around Fortin Page. A small 

 tree al)OUt 15 feet in height. 



lONIDIUM GLUTINO.SU.M, Vent. 



Hab. — -Ptio Pilcomayo. Common in the open campo. 

 Fl. 1st Xov.— 1st Jan. 



Xylo-Sma vexosum, X. E. Br. {vl sp.)— Arbor dioicus 

 spinosus, ramis spinis foliisque glabris ; foliis coriaceis 

 valde venosis petiolatis ovatis vel subrhomboideo-ellipticis 

 obtuse acutatis, basi cuneato-acutis, crenato-dentatis, den- 

 tibus subtus apice glanduliferis, glandulis ad petiolos 

 decurrentibus ; iioribus axillaribus dense fasciculatis 

 breviter pedicellatis, pedicellis ad medium articulatis, 

 bracteis late ovatis vel ellipticis, obtusis, ciliatis, extus 

 .subpuberulis, sepalis 5-7, valde imbricatis, ovatis vel 



