A SYNOPSIS OF THE VEGETABLE KINUDOM. 



43 



A. Nutlets affixed liy a short 

 areola below the middle 

 of the gynobase, which is 

 conical or strongly con- 

 vex 10. EEITIilCHIUM. 



AA. Nutlets affixed above the 

 middle or almost at the 

 apex of the gynobase, 

 which is narrowly con- 

 ical or columnar 11. Kkynitzkia. 



Subtribe 3. Nutlets placed on a flattish. rarely 

 shortly conical, gynobase, scar excavated or often 

 girt by a ring. 



A. Throat of corolla has 5 



scales inside 



B. F i 1 a m e nts appendaged 



with a scale 12. Borago. 



BB. Filaments not appendaged. 

 c. Corolla lobes very short 



and suberect l.'i. Svmpuvtum. 



cc. Corolla lobes spreading. 14. Anchi:sa. 

 AA. Throat naked or pilose 15. Pul.monaiiia. 



Subtribe 4. Nutlets erect or incurved, placed on 

 flat or slightly convex (rarely shortly conical) 

 gynobase. the basilar scar flat, either small at the 

 inner angle or oblique. 



A. Racemes without bracts 

 (rarely a few bracts at 

 base) : anthers obtuse at 



apex 



B. Throat of corolla scaly... 16. Myosotis. 



BB. Throat almost naked 17. Mertensia. 



AA. Racemes bracted 



B. Anthers obtuse at apex or 



hardly mucronate 



c. Lobes of corolla erect.. .18. Onosmodium. 

 CC. Lobes of corolla spread- 

 ing 



D. Corolla tube cylindri- 

 cal ; throat naked 

 or 5-gibbous and 



subsquamate in. Lithospehmdm. 



DD. Corolla tube slender ; 



throat naked 20. Arnebia. 



DD. Corolla tubular or 

 salver-form ; throat 

 naked : loties usu- 

 ally unequal :;l Echium. 



BB. Anthers linear, often acu- 

 minate, arrow-shaped 



at base 



c. Nutlets distinct 22. Ono.sma. 



cc. Nutlets connate in 



pairs 23. Cerinthe. 



0.8. CONVOLVCLACE.E. 



A. Corolla lobes small, imbri- 

 cate : plants parasitic, 

 leafless ; stems thread-like, 



not green 1. CusccTA. 



AA. Corolla plicate or indupli- 



cate in sestivation 



B. Ovary normally entire, 

 with 2 carpels and 2- 

 ovuled : rarely 3 car- 

 pels or 1, rarely 1- 



ovuled 



c. Fr. berry-like or harder, 

 indehiscent ; style 



undivided 



D. The ovary 4-celled, 4- 



ovuled 2. Argtreia. 



DD. The ovarv 2-celled, 4- 



ovuled 3. Lettsomia. 



cc. Fr. a 2-4-valved cap- 

 sule with a thin or 

 hard pericarp, or in- 

 dehiscent with a 

 thin pericarp: 

 styles 2 and distinct 

 or the style entire or 



divided 



D. Stigma thick, globose 

 or didymous : ovarv 

 2- .3- or 4-celled. .4. Ipom<ea. 

 DD. Stigma : capitate : 



ovarv 2-celled fi. Breweria. 



DDD. Stigmas 2, linear, Ali- 

 form or thickish..6. Convolvulcs. 

 (Except Calystegia section. 

 See also Khodorhiaa). ... 

 DDDD. Stigmas 2, fiat, ovate 



or oblong 7. Jacquemontia. 



(Also Cal.\stegia section of 



Convolvulus) 



BB. Ovary with .5 or more 

 lobes: fr. lobes, or nut- 

 lets 1-0-seeded s. Nolana. 



99. SOLANACE-E. 



A. Stamens unequal, didyna- 

 mous, the flfth (and some- 

 times also one of the 

 pairs) smaller, abortive or 



missing 



B. No. of perfect stamens us- 

 ually 5 



c. Stamens affixed at mid- 

 dle of tube or lower. .1. Petunia. 

 cc. Stamens affixed at apex 



of tube 2. Nierembergia. 



BB. No. of perfect stamens 



usually 4 or 2 



c. Corolla tube cylindrical ; 

 limb oblique; perfect 



stamens 2 3. Schizanthds. 



cc. Corolla obliquely funnel- 

 shaped : perfect sta- 

 mens 4. didynamous.-l. Salpiglossis. 

 ccc. Corolla tube cylindrical, 

 straight : anthers of 

 the 2 short stamens 

 dimidiate, of the 2 

 longer ones 2-celIed. .5. Browallia. 

 cccc. Corolla tube twisted: 

 anthers as in Browal- 

 lia 6. Streptosolen. 



ccccc. Corolla tube long, not 

 twisted, slightly wid- 

 ened at apex : 4 per- 

 fect anthers with con- 

 fluent cells 7. Brunfelsia. 



AA. Stamens all perfect, not di- 

 dynamous, normally .T. . . 

 B. Seeds little, if at all, flat- 

 tened 



c. Fr. a few-seeded berry. 8. Cestrom. 

 cc. Fr. a many-seeded cap- 

 sule 



D. Corolla with a nar- 

 row tube and short, 

 spreading lobes. .. .9. Fabiana. 

 DD. Corolla funnel or 

 salver-shaped, limb 

 equal or oblique. . .10. Nicotiana. 



BB. Seeds flattened 



c. Fr. a capsule 



D. Corolla lobes plicate. 11. Datdra. 

 DD- Corolla lobes imbri- 

 cate 12. Htosctamus. 



cc. Fr. berry like, or at 

 least indehiscent. . . . 

 D. Limb of corolla sub- 

 equally plicate or 

 divided into valvate 

 or i n d u p 1 i e a te 



lobes 



E. Anthers longer than 

 filament. conni- 

 vent or connate 

 in a cylinder or 

 cone, acuminate 

 at apex or dehis- 

 cent by 2 apical 



pores 



F. Connective vari- 

 ously thickened 



on back 13. Cvphomandra. 



FF. Connective slender 

 or obsolete. . . . 

 G. Lvs. pinnati- 

 sect: a n- 

 thers acumi- 

 nate, hollow 

 at tip. de- 

 hiscing by a 

 I ongitudinal 



crack 14. Ltcopersicum. 



GG. Lvs. polymor- 



