12 MISC. PUBLICATION 797, U. S. DEPT. OF AGRICULTURE 
Macleod and Staes’ Geillustreerde flora for the Flemish part. A 
detailed descriptive flora of vascular and cellular plants including 
full consideration of vernacular names, uses, folklore, and biology 
is being prosecuted under the direction of Robyns with the 
vascular plants, by Lawalrée, already about a quarter published. 
A catalog of vascular and cellular plants with detailed localities 
was published by De Wildeman and Durand in 1898-1907, with 
subsequent additions, and a more modern listing of vascular 
plants by Hauman and Balle, showing distribution by districts, 
came out in 1934; the two works include an essentially complete 
bibliography through 1934. In addition, there is a continuous 
bibliography by Van Aerdschot for the years 1902-1931, while 
Robyns (1951) has given a list of the more general and compre- 
hensive works. Two works are cited on native and cultivated 
trees, by Aigret and Wesmael respectively, and two historical 
works on cultivated plants, by De Wildeman and Morren; the 
cultivated as well as the wild plants are described in several of 
the older floras. There are a number of works on medicinal or 
poisonous plants, of which that by Chalon (1912) is the most 
recent and the most readily accessible. There is an old list of 
naturalized and introduced plants by Devos (1870), with some 
recent additions by Lawalrée and others. The Walloon vernacular 
names are listed by Boxus, Feller, and Lawalrée, the Flemish ones 
by Paque and Lawalrée. There are works on botanical history, 
plant associations and phytosociology, phytogeography, and on the 
history of rare plants over the years. 
Of the nine provinces, all but two (Flandre Orientale, Luxem- 
bourg) possess their own floras, five of them dating from 1845 
to 1878, with a joint flora of Luxembourg and Namur in 1902. 
The number of local publications per province ranges from 1 
(Flandre Occidentale, Limbourg) to 22 (Liege). Of 106 primary 
titles cited, 43 are general or partial, 8 provincial, and 55 local; 
and there are 65 subsidiary titles, making a total of 171. Most 
of the provincial and local titles are floras or florules, but there 
is a work on the useful, medicinal, and poisonous plants of 
Louvain, a flora of the poisonous plants of Liége Province, and 
several local works on Walloon names in the same province. 
DENMARK.—The kingdom of Denmark, with an area (excluding 
the Faroes) of 42,9386 square kilometers (16,576 square miles), 
has a flora of about 1,500 vascular plants, including naturalized 
species (Rostrup, 1953). About 206 additional microspecies of 
Rubus, Hieracium, and Taraxacum are given by Raunkier 
(1950). It is well provided with general works and possesses 
an appropriate number of special publications and local floras, 
some of them rather old. There are two standard, pocket-size 
modern floras, by Raunkizr and Rostrup respectively, the former 
containing many introduced species and microspecies not given 
in Rostrup, the latter with more detailed statement of local dis- 
tribution; also a flora of the Faroes (in Faroese) as well as an 
annotated catalog (in English). There are some excellent popular 
floras, including those by Gram and Jessen and by Hvass, and 
several works on woody plants, including the cultivated species. 
