3 
EEPORT ON THE CAOUTCHOUC OE COMMENCE . 
“ siderable distance. The milk is sparing, scarcely elastic 
“ when dry ” (Spruce). 
3. j E. paucifolia , Mull. arg. in Linnsea, 1. c., D. 0. Prod., L c. 
Synonym. — S 'iphonia pcmcifolia, Spruce, MS., Benth. 1. c. 
Geographic Distribution.— In rocky situations (or “ Caa- 
tingas ’*) about Panurb alqpg the Rio TJaupds (Spruce). 
Also found in British Guiana (Bob. and Prichard 
Schombiirgh. Hancock). 
Remarks.— A large tree 40 to 50 feet, yielding a very 
copious milky juice (Spruce). 
4. H. rigidifolia , Mull. arg. in Linnsea, 1. e., D. 0. Prod., 1. c. 
Synonym. — Biphoma rigidifolia , Spruce, Benth. 1. c. 
Geographic Distribution. — Caatingas of the Rio Uaupds 
(about Panur&). 
Remarks.— A milky tree of 30 feet in height. 
5. U. Benthamiana, Mull. arg. in Linnsea, 1. e., D. C. Prod., 1. c. 
Geographic Distribution. — Rio TJaupes (coll. R. Spruce, 
2560). 
6. R. Brasiliemis , Mull. arg. in Linnsea, I. c., D. G. Prod., 1. c. 
Synonyms. — Biphonia Brasiliemis, Willd. Kunth in 
Humb. et Bonpl. Nov. gen. et sp. pi., vol. 7, p. 171 ; 
Benth. in Hook. Jour. Bot., 1. c. (Plate I.) 
8. Kunthiana , Baill. Etud Gen. Euphorb., p. 326. 
Geographic Distribution.— Province of Para. Also in 
Venezuela (Humb. et B.) 
Remarks. — et A large handsome tree 60 feet high, branching 
“ from the base, and yielding the Caoutchouc most 
c£ abundantly exported ” (Spruce). 
7. R. Intea, Mull. arg. in Linnsea, 1. c., D. C. Prod., 1. c. 
Svnonvms. — Biphonia lutea , Spruce, MS. ; Benth., 1. c. ; 
Baill., 1. c. 
8. apiculata , Spruce, MS. 
S. brevifolia, Spruce, MS. 
8. apiculata, Baill., 1. c. 
Vernacular Names. — “ Long-leaved Seringa” (8. apiculata) 
and “ Short-leaved Seringa ” (8. brevifolia). 
j^ote. There is some little misunderstanding here. 8. 
apiculata of Spruce is given by Muller as a synonym. 
8. brevifolia of Spruce I have treated as a synonym also, 
as it seems to have been distributed under the same 
number (3139), and from the same locality. They may 
A 2 
