110 Mr G. Mann on Fertilisation in Flowers, [sess. li. 



Description of Plate III. 



Fig. 1. a, thin-walled cells, acting instead of a nectary; h, hairs of 



middle yellow spot. 

 Fig. 2. Epidermis of labelluni near apex, showing the pits. The 



dotted lines show position of down-directed hairs. 

 Fig. 3. Stellate tissue of labellum. 



Fig. 4. Upper part of column in newly-expanded flower. 

 Fig. 5. Flower after fertilisation : p^, outer, p-, inner, whorl of 



perianth ; /, labellum. 

 Fig. 6. Upper part of column, showing changes after fertilisation : 



a, anther case ;- sLf, fertile stamen ; sf, the staminodes ; 



V, viscid matter ; p, second pollen mass ; c, column. 

 Fig. 7. Section of flower, lettering as in fig. 5 : a, anther case ; 



V, viscid matter ; s, stigmatic surface ; sf, staminode ; 



c, column. 

 Fig. 8. Labellum, from beliind: ysp, yellow spots. 

 Fig. 9. Labellum, viewed sideways. 



List of Neiu and Pmtc Plants j;r^se?i^erZ to the Rerhariuni of 

 the Royal Botanic Garden. By Arthur Bennett, 

 F.L.S., Croydon, and Symington Grieve, Edinburgh. 

 Communicated by S. Grieve. 



(Reacl lOth March 1887.) 



The following plants have all been examined and named 

 by Mr Arthur Bennett, and as they are of considerable in- 

 terest, are worthy of preservation in the Herbarium at the 

 lioyal Botanic Garden : — 



Potamorjcton prwlongus, Wulf., from the island of Bum, 

 has only been previously recorded from Kirkcudbright, in the 

 south-west, and not hitherto in any of the western counties 

 of Scotland. It is common on the east coast. 



Carex flava, var. gauda of Gay, from the island of Bum. 

 If this plant is correctly named, this is the first record of it 

 in Scotland. It has only previously been once recorded in 

 Britain, having been collected on Snowdon many years ago. 

 The specimen now exhil;ited has been compared with the 

 Snowdon specimens preserved in Kew, and while Mr Bennett 

 has little doubt as to its being the same plant, he cannot be 

 perfectly certain, as the fruit is immature. In any case it 

 is a remarkable form of Carex flava. Gathered by S. Grieve 

 July 1884. 



