ADDENDA. 



New species, or those omitted in preceding part. 



Alisma Plantago (Water Plantain}. 

 A common British aquatic plant, 

 rather stately in habit and with large 

 panicles of pretty flowers ; 2 to 3 ft. 

 high. Flowers, late in summer; pale 

 rose-colour, in a large, handsome, 

 whorled panicle. Leaves, all radical, 

 ovate -heart- shaped or lanceolate, on 

 long stalks ; submersed leaves linear. 

 Europe and Britain, Asia, Egypt, N. 

 America and New Holland. Mar- 

 gins of lakes and streams or ponds. 

 Sows itself freely. 



Anthemis Aizoon (Everlasting A.} 

 A very neat silvery plant, 2 to 4 in. 

 high. Flowers, early in summer ; 

 resembling a white daisy ; florets of 

 the ray 14 to 18 in number, trifid, 

 twice as long as the breadth of the 

 disk. Leaves, lanceolate or tongue- 

 shaped, sharply and deeply serrated, 

 narrowed towards the base, covered 

 with white down, lower ones crowded; 

 stem-leaves rather acute, gradually 

 decreasing in size. Sub- alpine parts 

 of Northern Greece. The rock- 

 garden, in sandy loam. Division and 

 seed. 



Arethusa bulbosa (Bulbous A.} A 

 beautiful hardy orchidaceous plant, 

 about 9 in. high. Flowers, in May ; 

 solitary (very rarely two), bright rosy- 

 purple, 1 to 2 in. long; lip dilated 

 and recurved, spreading towards the 

 summit, and bearded-crested down 

 the face. Leaf, solitary, linear, nerved, 



hidden in the sheaths of the scape, 

 protruding after flowering. North 



America. In the artificial bog, or 



moist spots in the rock-garden, in 

 peaty soil. 



Asperula tinctoria (Three-lob ed 

 Woodruff}. A free- flowering and 

 pleasing perennial, 8 to 10 in. high. 

 Flowers, in summer ; white with a 

 faint rosy tinge, in small terminal 

 cymes; petals frequently 3 in num- 

 ber; bracts oval. Leaves, linear, 

 smooth, the lower ones in whorls of 

 6, the upper ones in pairs, and the 

 intermediate ones in whorls of 4. 



France. Borders, or the rougher 



parts of the rock-garden, in ordinary 

 soil. It may be easily naturalized in 

 shrubberies or copses. Division. 



Buphthalnmm salicifolium (Willow- 

 leaved B. ) A showy perennial, 1 to 

 2 ft. high. Flowers, late in summer ; 

 yellow, large, solitary on the tops of 

 the branches. Leaves, of a lively 

 green, thin, downy or slightly rough 

 on both sides, ciliated with long hairs, 

 faintly sinuate-toothed ; the lower 

 ones lance-shaped, attenuated into a 

 long stalk; the upper ones sessile, 

 linear-lance-shaped ; stem erect, rigid , 

 slightly branched above. South of 



Europe. Borders, in sandy loam. 



Division and seed. 



Buphthalmum speciosum (Heart- 

 leaved B. ) A stout and distinct-look- 



