66 
The Hairy Rock-Cress (Page 10) is a common Alpine weed, 
bearing numerous white flowers on a long stalk. The shape of its 
leaves is perhaps the most distinctive thing about it. 
The Mignonette-leaved Bitter-Cress (Page n) is another 
inconspicuous little plant with white flowers, but this one is rather 
rare. 
The Tooth-Wort (Page is) is a tall, almost shrubby plant, fairly 
common in mountain woods. Remembering the rose-lilac colour of 
the flowers, and that all the leaves are divided, it should be easily 
recognised. 
The Mountain Penny-Cress (Page 13), like the three preced- 
ing species, is a plant with cruciform flowers, that is, flowers formed 
by two pairs of opposite petals. The plant has white flowers, and 
grows in rocky places, but is rather rare. 
The Common Alpine Cress (Page 14), another cruciferous 
plant with white flowers, should be recognised from the photo. 
Hutchinsia brevecaulis is very like it, but is a smaller and more 
compact plant. Both are common in the Alps. 
The Grass of Parnassus (Page 15) is a lovely little plant. It 
grows in moist places not only in the Alps but also nearly all over 
Europe. The flower has a large fan-shaped glandular scale in front 
of each petal. To the middle of the flower-stalk is attached a 
single heart-shaped leaf. There are also similar leaves at the base 
of the stem, but these have long stalks. The petals are white and 
veined like ivory. 
The Mountain Milkwort (Page 16) is a creeping shrub common 
in most parts of Switzerland. Its leaves are polished, leathery, and 
evergreen. The central part of the flowe[ is yellow and the two 
wings are usually white, but when the plant is grown on calcareous 
slate, they acquire a reddish-purple colour. The influence of the 
soil on the colour of the flowers is very striking in this plant. 
The photograph on Page 17 gives a very poor idea of the 
general habit of the Creeping Gypsophila. The plant was 
grow'ing from a cleft among rocks, and therefore its long flower 
stalks and narrow leaves are very imperfectly seen. The Gypsophila 
is a common and graceful plant. The flowers are white or pale 
pink. 
The Nottingham Catchfly (Page 18) is common in Switzer- 
land, but is not exclusively Alpine. The flowers, which are 
drooping, when they first open, have very long styles. The petals 
are greenish white, and are divided nearly to their bases. 
The Sedum-like Cheleria (Page 19) is a tiny plant with 
minute green flowers, very common among rocks in the higher 
Alpine regions. It closely resembles a moss, especially when not 
flowering, but is really a Cushion plant, and allied to the pinks. 
Seme account of these Cushion plants, so characteristic of the 
higher Alps, will be found on page 67 of the First Series. 
The Field Mouse-Ear Chickweed, with white flowers (Pa^e 
20) is met with in lowland as well as Alpine regions. Its stem is 
hairy and its leaves smooth. 
