BORAGINACE.E. 85 



OKD. 50. CONVOLVULACE.E. 



1. CONVOLVULUS. Cal. of 5 sep. Cor. campanulate. St. 5. Style 



1. Stigma 2-lobed. Ovary 2- celled. Cells 2-seeded. 



2. CALYSTEGIA. Cal. of 5 sep. enclosed in 2 leafy bracts. Cor. 



campanulate. St. 5. Style 1. Stigma 2-lobed ; lobes fili- 

 form. Ovary 1 -celled at the apex, with 4 ovules. Twining 

 plants. 



3. CUSCUTA. Cal. 4 5-cleft. Cor. urceolate or campanulate, 



4 5-lobed. St. 45. Styles 2. Ovary 2-celled, with 4 

 ovules. Cap. bursting transversely, 2-celled. Leafless parasites. 



OKD. 51. BOKAGINACE.E. 



A. Throat of the corolla not closed with scales. 



1. ECHIUM. Cal. in 5-deep segments. Cor. irregular, funnel- 



shaped. Filaments very long, unequal. Style bifid. Achenes 

 wrinkled, with a flat base. 



2. PULMONARLA. Cal. angled, 5-cleft. Cor. funnel-shaped, regular. 



St. 5, filaments short. Style simple. Achenes smooth, with 

 a flat base. 



3. LITHOSPERMUM. Cal. in 5 deep segments. Cor. funnel- 



shaped, sometimes a few small scales in the throat. St. 

 included in the tube. Style simple. Achenes smooth. 



4. MERTENSIA. Cal. in 5 deep segments. Cor. funnel-shaped, 



with minute wrinkles at the throat. St. protruded. Style 

 simple. Achenes smooth, swollen. 



33. Throat of the corolla more or less closed with connivent 

 scales or valves. 



5. MYOSOTIS. Cal. 5-cleft. Cor. rotate x>r salver-shaped ; throat 



nearly closed with rounded valves. St. included, limb 5-cleft, 

 blunt. Style simple. Achenes smooth. 



6. ANCHUSA. Cal. 5-cleft. Cor. funnel-shaped, tube straight. 



St. included. Achenes depressed, concave at the base. 



7. LYCOPSIS. Cal. in 5 deep segments. Cor. funnel-shaped, tube 



curved, limb oblique. St. included. Achenes depressed, 

 concave at the base. 



S. SYMPHYTUM. Cal. 5-cleft. Cor. tubular, enlarged upwards, 

 scales in the throat lanceolate or subulate. St. longer than 

 the tube, covered by the scales. Achenes ovate, excavated 

 at the base. 



9. BORAGO, Cal. in 5 deep segments. Cor. rotate, scales emar- 



ginate. St. exserted, filaments bifid, inner point bearing the 

 anther. Anthers connivent in the form of a cone. Acheues 

 with an excavated base. 



10. ASPERUGO. Cal. with 5 small teeth, alternating with the 

 large ones ; enlarged and depressed in fruit. Cor. funnel- 

 shaped, scales rounded. Achenes covered by tubercles. 



11. CYNOGLOSSUM. Cal. 5-cleft, regular. Cor. shortly funnel- 

 shaped, scales blunt. Achenes covered with muricated points. 



