400 W. L. Bray. | 
1. The almost cosmopolitan, fleshy leaved annual F. pulverulenta L. 
2. The very variable shrubby perennials embracing: 
(4) F. laevis L. the common prostrate shrubby species of the western 
Mediterranean countries, extending east to Greece and Crete (inel. var. 
intermedia = F. intermedia D C.); north through Spain and France to Eng- 
land; south to Senegambia the Cape Verde and Canary Islands (incl. F. eri- 
cifolia C. Sm. and F. capitata Webb et Bert.), also to Capland. Eastward 
this species is replaced by 
(2) F. hispida DC., the common form of the Eastern Medit. countries, 
from the Balkan Peninsula eastward over the basins of the Black, Caspian 
and Aral seas, becoming var. erecta Boiss. in south-eastern Persia and 
Afghanistan. 
The three following narrowly endemie species: 
(3) F. revoluta Forsk. in Northern Egypt about Alexandria (eastward 
in Syria?) distinguished by its capitate stigmas. 
(k) F. velutina D C. north-east coast of Marocco; peculiar in forming 
only one or two pairs of ovules to each placenta. The ovules arise from the 
carpellary wall near the roof and become inverted with mieropyle upward. 
The seeds are 3—4 times the volume of those in F. laevis. 
(5) F. Boissieri Reut. in southern Spain; with unusually short tubular 
portion of calyx, but very long, free tips. 
The following more erect bushy shrubs with elosely rolled compact 
leaves usually developing a thick zone of hard bast along the midrib; 
(6) F. corymbosa Desf. 
(7) F. thymifolia Desf. incl. F. Reuteri Boiss., apparently also F. pallida 
Boiss. et Reut. Numbers (6) and (7) together constitute a rather distinct circle 
of forms inhabiting more arid localities from southern Spain through Algeria 
and Marocco into the Sahara. 
Frankenia pulverulenta L. possesses the widest distribution of any 
species in the family, being almost a cosmopolitan coast species, although it 
has reached the Western Hemisphere only as a ballast plant in recent years. 
The plant is also widely distributed over the inland salt regions, apparently 
however fleeing from the driest territory and occurring on the moist saline 
soil about inland salt lakes. It occurs over the whole of the Mediterranean 
region northward to the British Isles. Southward to Senegambia and the 
Canary and Cape Verde Islands and again in Capland; also throughout 
northern Africa far from the coast. Eastward to Songarei and the Punjab 
and south-eastward over Arabia. 
Noteworthy is the fact that this plant is subject to so little variation 
throughout the wide region in which it occurs. Except that in certain drier 
places it becomes more erect and with a somewhat xerophytic aspect, it is 
always the constant, prostrate, soft, glabrous plant with unrolled, rather 
fleshy leaves. The wide distribution of this plant is not difficult to explain, 
