OP ARTS AND SCIENCES. 457 



(after a week of malarial fever) ia excursions along the lake and into 

 the mountains, made the more successful by the hearty and vigorous 

 co-operation of his father-in-law, A. W. Lanier, Esq., of La Grange, 

 Tennessee, himself a well-informed botanist, whose seventy years rest 

 lightly upon him. My visit to Guatemala was concluded by a three 

 days' trip to the Motagua valley and the ruins of Quirigua. 



1. Clematis Americana, Mill. A puberulent form of this poly- 

 morphous species (as it is now generally considered), with 3-foliolate 

 sparingly pubescent leaves, the large thin entire leaflets broadly 

 ovate ; the inflorescence somewhat more pubescent, with mostly 

 digitately divided bracts ; achenes nearly glabrous. On the Camiiio 

 Real near Yzabal. 



2. Da VILLA RUGOSA, Poir. A tall shrub on river-banks at Liv- 

 ingston and Chocon. 



3. Da VILLA LUCIDA, Presl ? Leaves thinner, with the margins 

 not at all revolute, more acuminate, and acute at base, not shining 

 above ; petals none. At the Chocon plantation. This species is 

 referred by Hemsley to D. Kunthii, St. Hil. 



4. DOLIOCARPUS PDBENS, Mart. A tall shrub on the river-bank 

 at Livingston. 



5. CuRATELLA AMERICANA, Linu. The " sandpaper tree," the 

 firm rough leaves being used as a substitute for sandpaper in polish- 

 ing woodwork. On dry hills at El Mico, near Quirigua. 



6. Tetracera ? A very scabrous climber: leaves broadly 



oblong or oblong-ovate, acute, rounded at base, denticulate toward 

 the apex, scabrous both sides, with usually some stellate hairs above 

 and appressed hairs on the narrowly-winged petiole, 2 to 4 inches 

 long : staminate panicles loose, scabrous ; bracts narrowly lanceolate : 

 sepals 5, nearly equal, rounded, scabrous-puberulent and scantily 

 hairy on the outer side, puberulent within, 2 lines long ; petals 5 ; 

 stamens very numerous, short. — Apparently an undescribed species, 

 but only staminate specimens collected. On the banks of the Chocon. 



7. GuATTERiA Jdrgensenii, Ilemsl. Berries numerous upon the 

 receptacle, oblong, 4 lines long, about half the length of tlie slender 

 stipe. This seems to be Ilemsley's species, as described by him. 

 Shores of Lake Yzabal, in fruit ; also collected by "W. T. Brigham 

 at Chocon, in flower and fruit. 



8. GuATTERiA ? Branches slender, glabrous: leaves coria- 

 ceous, smooth and shining, narrowly oblong-lanceolate, acuminate, nar- 



