C. lusitanicus in conformity with Linnean principles. In 
the supplement to his Spanish flora Willkomm has 
accordingly adopted this obviously apposite name, and 
in this he has been followed by recent Spanish and 
Portuguese authors. Willkomm, however, has not cited 
the passage in which the name C. lusitanicus, Quer, 
occurs ; the name is not employed in the Flora Espanola 
published by Quer in 1762 and completed by Ortega in 
1784. In 1789 Lamarck, adopting the view of Bobart, . 
treated this broom as a Genista, so that the name G. alba, 
Lamk, is the earliest verifiable one applied in conformity 
with modern usage. Unfortunately, long before Link, 
in 1822, retransferred the species to Cytisus, another 
C. albus, from south-eastern Europe, had in 1790 been 
duly described by Haquet. Meanwhile the elder Aiton, 
in 1789, had placed the Portugal White Broom in 
Spartium, as S. multiflorum; so that when Sweet, in 
1826, corrected this error the species was transferred to 
Cytisus as C. multiflorus. In order to avoid the con- 
fusion created by the fact that the name C. albus had 
been used for two different brooms from south-eastern 
and south-western Europe respectively, recent writers, 
following Briquet, who has monographed the genus 
Cytisus with singular care, have feit constrained to 
employ for the Portugal White Broom the name C. 
multiflorus, Sweet, rather than the name C. albus, Link. 
In his monograph of the genus, however, Briquet has 
indicated that the plant described by Haquet, for which 
in 1803 Waldstein and Kitaibel proposed the name 
C. leucanthus, under which it was figured at t. 1438 of 
this work, is better treated as referable to C. supinus, 
Linn. So long, therefore, as the validity of the name 
C. lusitanicus, Quer, employed by Willkomm in 1893, 
remains doubtful, it is possible to follow Schneider in 
retaining for the Portugal White Broom the name 
C. albus under which, since the time of G. Don and 
Loudon, ‘it has been familiarly known in English 
gardens. Among the cultivated brooms C. albus is .dis- 
tinct and valuable in being the only really hardy species 
with white flowers. ° Others with flowers of a similar 
- shade are more or less tender; C. albus, even in very 
hard weather, remains unscathed, or at most only suffers 
