232 MAGUIRE 



(1817-1822), M. Melinon (1840-1862), and P. A. Sagot (1854-1878), 

 whose original materials are at Paris. These specimens still constitute the 

 chief body of material collected in French Guiana. The original specimens 

 of J. Martin, some 1172 sheets, are at the British Museum. 



Unfortunately, contemporary exsiccatae from French Guiana are few. 

 W. E. Broadway's collections of 1020 numbers are at New York. R. Benoist 

 in 1913-1914 made floristic and ecological studies in the coastal regions from 

 which he derived 2765 collection numbers, often in large duplicate series, 

 all of which are yet at Paris. At the present time, P. Bena and M. Lamoine, 

 with the assistance of Mr. Hook, have been actively engaged in reconnaissance 

 in various parts of French Guiana. Their specimens are being submitted to 

 Paris, Utrecht, and New York. In 1955 R. S. Cowan collected 310 numbers 

 in the vicinity of Cayenne, Montague de Kaw, and St. Laurent, the first set 

 of which is at New York. 



Amapa, Brazil. Recently, botanical activity in Brazilian Guiana has oc- 

 cupied the attention of J. M. Pires and his colleagues at the Instituto Agro- 

 nomico do Norte at Belem: R. L. Froes in 1950 and 1951 collected a total 

 of 822 specimen numbers, and George Black in 1949, 1951, 1954, and 1955 

 a total of 798 numbers. In 1955 R. S. Cowan (in small part with Bassett 

 Maguire) obtained nearly 600 numbers from the Serra do Navio and from the 

 vicinity of Oyapock on the Amapa-French Guiana border. 



Colombia. In Colombia the earliest collections of note were made by J. C. 

 Mutis (1760-1808) in his many years' residence at Bogota. Mutis amassed 

 a large herbarium of more than 6000 specimens which, with the well-known 

 beautiful paintings done under Mutis' direction, are at Madrid. Subsequent 

 collectors of especial note were H. Karsten (1846), whose original collection 

 of more than 2000 sheets (deposited at Leningrad) formed the basis for his 

 excellently illustrated Florae Colombiae, 1858-1869, in two folio volumes; 

 J. J. Triana (1854-1892), whose original collection of more than 5000 sheets 

 is at Paris; E. Andre (1875-1876), who made a large collection of over 14,000 

 numbers, the first set of which is deposited at Kew; F. C. Lehmann (1880- 

 1899), who collected chiefly in Colombia, gathered more than 7000 collections 

 of which the first set is at Kew; and J. J. Linden (1841-1843), whose col- 

 lection of more than 2000 numbers is at Gent. 



Many botanists have recently contributed to contemporary work on the 

 rich and diversified flora of Colombia. Under the leadership of A. Dugand, 

 E. P. Arbelaez and the present director of the Instituto Nacional de Ciencias, 

 Lorenzo Uribe-Uribe, Colombian botanists, notably Hernando Garcia-Barriga 

 and Jesus Idrobo, have contributed importantly. Numerous non-Colombians 

 have been very active in the study of the Colombian flora. 



Unquestionably the first-ranking contemporary student of the flora of 

 Colombia is Jose Cuatrecasas, who over a period of seventeen years collected 

 the enormous total of 24,661 numbers of plants, often in duplicate series. 



