98 a flora of gibraltar and the neighbourhood 



Lemnace^. 



Lemna gibha L. Water holes; occasional; 4-6. I. Near 

 Inundation, de Coincy. III. i. Linea ! ii. Palmones Playazo ! 

 iii. Palmones Sands ! 



L. minor L. Similar places ; locally frequent ; 4-6. III. i. 

 Lajo below Almendral ! ii. and iii. With the last ! 



Naiadaces:. 

 iZannichelUa macrostemon J. G&y. Pools; rare; 4-6. III. i. 

 Near San Eoque, Nilss. ii. ! ? My 1112, a young state, from a 

 roadside pool towards Palmones Pinar, may be this or Z . ixtlustris 

 L., a frequent species in the province. 



\Potamogeton amoricanus Cham. & Schl. (P. fluitans Roth). 

 Streams ; locally common ; 6-8. III. i. In the Lajo and its 

 tributaries ! ii. In mountain swamps ! 



fP. pusilhts L. var. elongatus Ar. Benn. Streams ; rare ; 5-6. 

 III. i. In the Lajo and its tributaries ! 



[Rupina rostellata Koch is reported from the Inundation and 

 Neutral Ground by Kelaart and Dautez, and is attributed to 

 Boissier by Debeaux, but Boissier's specimen is correctly labelled 

 B. maritima !] 



B. maritima L. [B. spiralis Dum.). In salt water; locally 

 abundant; 8-10. Peduncles spirally coiled. I. The Inundation is 

 full of it ! Near the convict station, A'. ; now built on. III. ii. 

 and iii. Salt marshes at San Roque and Algeciras, Nilss. 



Zostera marina L. In the sea or tidal rivers ; frequent ? 

 6-7. I. Western shores, K. II. and III. All round the 

 Bay, K., D. ^ 



Posidonia Caulini Koenig. In the sea ; rare? 4-8. With a 

 large tuft of dead leaf sheaths at base, flowers in longly peduncled 

 spathes. I. Near the North Front Guard, Kel., Boiss. III. ii. 

 Algeciras, D. 



Alismace^. 



■\Alisma ranunculoides L. Pools, ditches and streams; very 

 common; 4-6. II.! III.! 



A. Plantago L. Similar places; much less common; 4-6. 

 The type has leaves broadly rounded or cordate at base, and is 

 rare. III. i. Sand desert below Pedrera, D. 



Var. lanceolata G. & G. with leaves narrowed below, is the 

 usual form. III. i. Lajo Valley! Carteian Hills! Campamento 

 Common! ii. Algeciras, i?ey. Palmones Playazo ! iii. Salt Pans! 



Juncaginace^. 

 Triglochin maritimuvi L. Salt marshes; rare'; 4-5. Spikes 

 dense, fruit of six carpels. III. i. Sand dunes below S. Car- 

 bonera, D. 



T. Barrelieri Lois. Fresh water marshes ; occasional ; 1-3. 

 Spikes very lax, fruit of three carpels. III. ii. Palmones Playazo ! 

 iii. Guadarranque Marshes ! 



[T. palustre L. is recorded from near Gibraltar by Schott {ex 

 Colm.) in addition to T, Barrelieri, but is unconfirmed.] 



