BORRAGINEiE. (BORAGE FAMILY.) 531 



SuBTRiBi I. CYNOGLiOSSEiE, Nutlets 4, inserted by inner face, on aflat, con- 

 Vex, conical or columnar gynobase, their tips projecting little if any above it. 



* Fruiting calyx growing. JSTutlets inserted by whole inner face. Strigose herbs. 



3. TEICHODESMA. Anthers exserted, connivent, twisted. 



4. CACCINIA. @ Anthers unequal, the posterior long-exserted. Base of style cup-shaped 



in fruit. 

 * * Fruiting calyx growing but little. J\rutlets divergent, sacculate below insertion. 

 •f Stamens included. 



5. CYNOGLOSSUM. (D Herbs, with prickly nutlets and a strong odor. 



•f t Stamens exserted. 



6. SOLENANTIIUS. 2|! Anthers oblong, entire. More or less pubescent herbs. 



7. TRACHELANTHUS. If Anthers linear, sagittate at base. Glabrous herbs. 



* * * Fruiting calyx unchanged. JVutlets inserted on a pyramidal column. 



8. EINDERA. 2( Disk of nutlets not tubercled ; wings entire, repand or denticulate. 



9. PARACAEYUM. 2f Disk of nutlets usually muricate, rarely smooth ; wings denticulate 



or entire. 



SuBTRiBE. II. ER-ITRICHE^. Nutlets 4, rarely 2 or 1, inserted by inner face 

 on an elevated, conical, oblong, or columnar gynobase, their tips more or less prominent 

 above it, free. 



* Articular surface of nutlets extending from base to middle or higher. 



10. ECHINOSPERMUM. (D Herbs, with ascending or spreading leaves, and loose 



racemes. 



11. ECHIOCHILON. ^ Shrubs, with white branches, minute,} appressed leaves, and short 



terminal spikes. 



12. ROCHELIA. Herbs, with spreading leaves j lobes of fruiting calyx incurved. 



* * .Articular surface of nutlets at middle of inner face, small. 



13. ASPERUGO. Prostrate herbs ; calyx 9-valved in fruit ; nutlets warty. 



SuBTRiBE III, ANCHUSE-SE. Nutlets 4, inserted on a flat or short-conical gyno- 

 base by a concave surface usually surrounded by a ring, which is sometimes left on the gyno- 

 base when the fruit is shed. 



* Throat of corolla with 5 scales. 



14. SYMPHYTUM. 2f Corolla cylindrical or funnel-shaped j lobes nearly erect, 



15. BORAGO. Corolla rotate ; lobes spreading, 



16. ANCHUSA. @ If Corolla funnel-shaped, sometimes bilabiate ; lobes spreading. 



* * Throat of corolla naked. 



17. NONNEA. Squamules of corolla half way down its tube. 



18. ALKANNA. 2C Throat of corolla with small, transverse wrinkles. 



SuBTRiBE IV. lilTHOSPERMK-aE, Nutlets erect or incurved, inserted on a 

 flat, convex, or slightly conical gynobase by a flat surface at base or inner angle. 

 * Racemes not bracted. Anthers obtuse at tip. 



19. MYOSOTIS. 2f Corolla-scales at throat ; limb twisted to the left. 



* * Racemes bracted. Anthers obtuse at tip. 



20. LITHOSPERMUM. ^ Anthers included, straight. Corolla-lobes spreading. Style 



entire. 



21. MOLTKIA. ^ Anthers exserted, curved. Corolla-lobes erect. Style entire. 



22. ARNEBIA. If Anthers included, straight. Corolla-lobes spreading. Style bifid. 



23. ECHIUM, @ 2f Corolla more or less bilabiate, 5-lobed. 



