GROUP V. ANGIOSPERALS: ; DICOTYLEDONES. 573 



Sub-order 1. RHODODENDROIDE^:. Fruit a septicidal capsule, corolla fuga- 

 cious : anthers without appendages. 



Rhododendron ferrugineum and Mrsutum, the Alpine Roses, are wild on 

 the continent : other species of Rhododendron (incl. Azalea), from the 

 mountains of Asia and North America, as also species of Kill m ia from 

 North America, are cultivated. Daboecia polifolia, the Irish Menziesia or 

 St. Dabeoc's Heath, Phyllodoce taxifolia, the Scottish Menziesia, and 

 Loiseleuria procumbens, the trailing Azalea, represent the sub-order in the 

 British Flora. 



Sub-order 2. ARBUTOIDEJE. Fruit a berry, or a drupe, or a loculicidal 

 capsule : corolla fugacious : anthers usually appendiculate. 



Andromeda Polifolia, the marsh Andromeda or Wild Rosemary, occurs 

 in peat-bogs, and Arctostapliylos Uva Ursi and alpina, the red and the black 

 Bearberry, on the mountains of Scotland. Arbutus Unedo is the Straw- 

 berry-tree of Southern Europe, and Gaultheria is the Aromatic Winter- 

 green. 



Sub-order 3. ERICOIDE.E. Fruit usually a loculicidal capsule : corolla 

 persistent : anthers usually appendiculate. 



Calluna Erica, the Ling or Heather, with a septicidal capsule and a 

 deeply 4-partite coloured calyx, is common on moors : the principal British 

 species of Erica, are E. mediterranea (or carnea), the Irish Heath; E. 

 Tetralix, the cross-leaved Heath ; E. cinerea, the grey or fine-leaved Heath ; 

 and E. vagans, the Cornish Heath. Very many species belong to the 

 Mediterranean region, and to the Cape. 



Order 2. PYROLACRffi. Sepals more or less distinct : petals 

 commonly connate at the base only : anthers without appendages, 

 dehiscing generally transversely or by pores : fruit a loculicidal 

 capsule (Fig. 387 B} : seeds minute, with an extremely small 

 embryo consisting of only a few cells, and a relatively massive 

 integument. Saprophytes containing chlorophyll. 



Pyrola rotundifolia, secunda, minor, and uniflora, the Winter-greens, are 

 found in woods. 



The MONOTROPE^E are saprophytes devoid of chlorophyll, with scale-like 

 leaves. Monotropa Hypopitys (Hypopitys multiflora), the Bird's nest, is 

 not very common in England. 



Order 3. VACCINIACE^E. Ovary inferior (Fig. 387 C] : anthers 

 with appendages (Fig. 277 B\ usually opening by two pores : fruit 

 a berry. 



Vaccinium Vitis-ldcea is the red Whortleberry or Cowberry ; it usually 

 blossoms and bears fruit twice in the year : V. Myrtillus is the Bilberry, 

 Blaeberry, or Whortleberry, with deciduous leaves : V. Oxycoccos (Oxycoccos 

 pal-ustris, or Schollera Oxycoccos) is the Cranberry : and V. uliginosum, the 

 gieat Bilberry or Bog-Whortleberry. They are all low shrubs occurring 

 on moors. . 



