271 
fortianus. 3000 species of this collection (thirteen sheets of which 
bear notes in handwriting of Linnaeus) forming the types of this 
work are now in the Herbarium of the British Museum. (fide. 
British Mus. (Nat. Hist.) Dept. Bot., Exhibition of a selection 
from the historical collections. Fifth International Bot. Congress, 
1930. London, p. 13.) 
LEIDEN 
Hortus BoTaNicus 
Nonnensteeg 3 
Established: 1587. Area: 2 hectares. 
Directors: 
. G. Bont (1587-1593) 
Ch. Clusius (1593-1609 ) 
P. Baaw (1609-1617) 
E. Vorstius (Van Voorst) (1617-1624) 
A. Vorstius (Van Voorst) (1624-1663) 
A. Schuyl (1663-1670) 
A 
P 
— 
A. Syen (1670-1678) 
. Herman (1679-1695 ) 
9. P. Hotton (1695-1709) 
10. H. Boerhaave (1709-1731) 
11. A. Van Royen (1731-1754) 
12. D. Van Royen (1754-1786) 
13. S. J. Brugmans (1786-1819) 
14. C. S. C. Reinwardt (1819-1845 ) 
15. W. H. de Vriese (1845-1862) 
16. F. W. R. Suringar (1862-1893) 
17. J. H. Janse (1899-?) 
18. L. G. M. Baas Becking (1937) 
Open free, daily, April 1 to October 1, from 9-6; October IES io) 
March 31, from 9-4. Sundays in summer, 10-4. October I to 
March 31, not open on Sundays. Sources of income: Endow- 
ment; annual appropriations by national government. Library: 
In the botanical laboratory. Plantations: Systematic (following 
Kichler), ecologic, pharmaceutic. Arboretim (about 100 species). 
Fruticetum (about 400 species). Species under glass: about 1500. 
Herbaceous plants out of doors: About 1400 species. Publication: 
Seed List. Supplies living material (except wild flowers) occasion- 
