OP BRITISH PLANTS. 425 



Order XL VIII. ERICACEAE. 



Calyx four- or five-parted, persistent. Corolla four- or five-parted, 

 regular or irregular, generally marcescent. Stamens eight; anthers 

 two-celled, opening by pores at the apex or base. Ovary surrounded 

 by a disk or scale, many-celled, many-seeded ; style one. Fruit a 

 many-celled, many-seeded capsule or berry. 



ERICE.K. ARBUTE/E. 



1. Andromeda, 192, 193. 6. Arbutus, 192, 193. 



2. Calluna, 181, 185. VACCINIES. 



3. Erica, 181, 186. 7. Vaccinium, 181, 184. 



4. Menziesia, 181, 185. PY ROLES. 



5. Azalea, 110, 122. 8. Pyrola, 191, 194. 



MONOTROPE*. 



9. Monotropa, 191,193. 



Order XLIX. ILICINE^E. 



Calyx of from four to six imbricated lobes. Corolla regular, with 

 from four to six lobes. Stamens alternate with the lobes of the corolla. 

 Ovary with from two to six or more cells ; ovules solitary, pendulous, 

 with a cup-shaped stalk. Fruit fleshy, indehiscent. 



1. Ilex, 96, 105. 



Order L. JASMINES. 



Calyx divided, persistent. Corolla with from four to eight divisions, 

 rarely none. Stamens two. Ovary two-celled, ovules in pairs, pen- 

 dulous. Fruit a berry, drupe, or capsule. 



1. Ligustrum, 49, 49. 2. Fraxinus, 49, 50. 



Order LI. APOCYNE^E. 



Calyx with four or five persistent divisions. Corolla regular, with 

 four or five lobes, twisted, deciduous. Stamens five, with the filaments 

 distinct ; anthers two-celled, pollen granular. Ovaries two, one-celled ; 

 or one, two-celled, many-seeded. 



1. Vinca, 110,135. 

 Order LII. GENTIANE^E. 



Calyx divided, persistent. Corolla regular, marcescent, twisted, with 

 four, five, six, eight, or ten lobes. Stamens as many as the lobes. 

 Ovary with one or two cells, many-seeded, style one. Capsule or berry 

 many-seeded, generally two-valved. 



1. Chlora, 181, 184. 4. Menyanthes, 110, 120. 



2 Gentiana, 111,140. 5. Villarsia, 110, 121. 



3. Erythraea, 110, 131. 



Order LIU. POLEMONIACE^E. 



Calyx inferior, five-parted, persistent. Corolla five-lobed, regular, 

 deciduous. Stamens five, unequal, from the tube of the corolla. Ovary 

 three-celled ; style simple, stigma three-fid. Capsule three-celled, the 

 valves separating at the axis. 



1. Polemonium, 110,123. 



