184 THiE JOURNAL OF BOTANY 



10 mm. longis). Flores duos liabet laterales dimidio minores flore 

 centrali, qui partem segment! dimidiam certe superat. Celluliae 

 tum spirales cum spiculares nusquam apparent. 



This is tlie plant whicli English authorities have recently been 

 iia,uiing '' S. 2)^'ocumbens Sm."; but Smith's description, figure, and 

 specimen (!), and his account of its habitat prove that his plant 

 was merely a form of S. europcBct toppled over by the tide. It 

 occurs in southern England from Norfolk to Somerset. 



12. Salicobnia peostrata. 



S. prostrata Pall. 111. Plant. 8, t. 3 (1803) ! 



S. prostrata auct., pro parte. 



S. promimhens auct., pro parte, non Sm. 



S. patula auct., pro parte. 



In addition to Eussia, the plant occurs in Belgium, and in 

 north France on the Bouche d'Erquy. It should be found in the 

 south of England, and may prove to be rather widespread in the 

 salt-marshes of central and southern Europe. 



The plant is usually green in colour, prostrate, very much 

 branched, the branches remaining quite prostrate, up to about 15- 

 20 cm. in length, and triangular in outline. This and S. ajjpressa 

 differ from S. Oliveri and S. Smithiana in possessing very numer- 

 ous secondary branches. From S. appressa it differs in its flower- 

 ing spikes, which are cylindrical and obtuse. From S. Smithiana 

 and S. ap)prcssa it differs in the much wider angles (about 90°) 

 which the branches make with the main stem. The vegetative 

 segments are about 8-10 mm. long, and the terminal flowering 

 spikes about 6-12 mm. long. The lateral flowering spikes are 

 about two-thirds as big as the central one which reaches nearly 

 two-thirds of the way up the segment. 



13. Salicornia appeessa. 



S. appressa Dum. in Bull. Soc. bot. Belg. 333 (1868) ! 



S. prostrata auct., pro parte, non Pall. 



S. procumbens auct., pro parte, non Sm. 



At present, this species is known from Belgium, the Bouche 

 d'Erquy, and the south of England. It is given the rank of a 

 species in the Index Kewensis. 



In colour it varies from a dingy red to a deep crimson. Like 

 S. Oliveri and S. prostrata, it is a prostrate, triangular plant, but 

 its branches are sometimes ascending at the tips. The main stem 

 may grow to be 15 cm. or more in length. The vegetative seg- 

 ments are about 7-9 mm. long. The terminal flowering spikes 

 are short (10-12 mm.), tapering, and acute. The central flower 

 is larger than the lateral ones, and reaches nearly to the top of 

 the segment. 



Key to thu Species. 

 I Perennial plants, small shrubs or dwarf shrubs ; lateral flowers 



,) separated by the central one ; stigma bifid 2 



1 Annual plants ; lateral flowers meeting below the middle one ; stigma 

 \ much branched 5* 



* All the British species are included in 4 and 5. 



