Botany. 183 



N.O. 2. BUTOMACEM (under ALISMACEM, B. & H.). 



1576. BUTOMUS umbellatus, L. (FLOWERING RUSH), 67, P. 



Aquatic ; frequent. Fls. contain honey. 



1. In the Darenth, near the bridge, South Darenth, '01. 



W.H.G. 



2. Stone Marshes, '02. W.H.G. 



3. Between Greenhithe and Northfleet. Jackson. 



4. Higham Marshes. Dod. 



5. Greenwich Park. Introduced, 

 a. First record, 1829 : Erith. 



N.O. 3. ALISMACEJE. 



(444) ALISM A, L. Aquatics with half-concealed honey. 



1571. A. plantago, L. (WATER PLANTAIN), 7 8, P. Common. 



1. Wet gravel-pit near Ravensbourne Railway Station, 



'05. W.H.G. 



2. Belvedere Marshes, '03. R.H.C. 



1572. A. ranuneuloides, L. 6 7, P. Turfy bogs, ditches ; scarce. 



1. Pool near Northumberland Heath. Dod. 



2. Chislehurst Common, 1877 ; So., '97. 



1574. SAGITTARIA sagittifolia, L. 8, P. Aquatic, with trimorphic 

 leaves. The fls. which are monoecious contain honey, and 

 are visited by flies. Scarce in the district. 



1. Stone Marshes, near Greenhithe, '02. W.H.G. 



2. Plentiful in ponds at Hollydale. A.D.W. 



3. Top pond below Caesar's Pool, Keston Common 



(introduced), '03. W.H.G. 



N.O. 4. JUNCAGINACEM (under NAIADACEM, B. & H.). 

 (449) TRIGLOCHIN, L. Protogynous wind-flowers. 



1577. T. palustre, L. 6 7, P. Marshy places ; not uncommon. 



1. Plumstead Marshes (plentiful), Erith Marshes. Reeves. 



2. Stone Marshes, '03. W.H.G. 



3. Dartford Marshes, '97. Sc. 



a. First record, 1836 : Marshes between Greenwich and 

 Woolwich. 



1578. T. maritimum, L. 7 8, P. Maritime and submaritime marsh- 

 t plant ; frequent in the estuary of the Thames. 



a. First record, 1836 : Erith. 



