LINN M AN CLASS V. 171 



Villarsia. Calyx 5-parted. Corolla rotate. Capsule 1-cellcd, 2- 

 valved, many-seeded. Gentianacece, 82. 



Samolus. Calyx 5-cleft. Corolla salver-form, with 5 sterile filaments. 

 Capsule 1-celled, many-seeded. Primulacece, 95. 



Sabbatia. Calyx 5 — 12-parted. Corolla rotate, 5 — 12-parted. Stig- 

 mas 2, spiral. Capsule 1-celled, 2-valved. Gentianacece, 82. 



Hydrophyllum. Calyx 5-parted, lobes subulate. Corolla campanu- 

 late, filaments bearded in the middle. Hydrophyllacece, 85. 



Nemophila. Calyx 10-parted, alternate lobes reflexed. Corolla cam- 

 panulate, 5-lobed. Capsule 1-eelled, 2-valved, 4-seeded. Small succu- 

 lent plants. Hydrophyllacece, 85. 



EilUia. Calyx 5-parted. Corolla tubular, campanulate, about equal 

 to the calyx; tube with 10 minute appendages within. Limb 5-lobed. 

 Ovary conical, 2-seeded. Annual herbi. Hydrophyllacece, 85. 



2. Capsule 1-celled, rarely 3-celled. 



Phacelia. Cosmanthus. Calyx 5-parted. Corolla somewhat campan- 

 ulate, with 10 plaits on the inside. Capsule 2 valved. Hydrophylla- 

 cece, 85. 



Spigelia. Calyx 5-parted. Corolla funnel-form, 5-cleft, long tube. 

 Loganiacece, 81. 



Verbascum. Calyx 5-parted. Corolla rotate, somewhat irregular. 

 Stamens declined, hairy. (Mullein.) Scrophulariacece, 90. 



Batatas. Convolvuhts. Sepals 5. Corolla campanulate. Stamens 

 included. Stigma capitate, 2-lobed. Ovary 4-celled, or by abortion 

 2— 3-celled. Herbaceous vines. Convolvulacece, 86. 



Convolvulus. Calystegia. Calyx 5 parted, with or without 2 bracts at 

 the base. Corolla funnel-form or campanulate, with 5 ] laits. Capsule 

 few-seeded. Convolvulacece, 86. 



Ipomea. Calyx 5-cleft. Corolla funnel-form, or campanulate. Cap- 

 sule many-seeded. Convolvulacece, 86. 



Quamoclit. Ipomea. Sepals 5. Corolla tubular, cylindrical. Sta- 

 mens exsert. Stigma capitate, 2-lobed. Ovary 4-celled. Cells 1 -seed- 

 ed. Vines. Convolvulacece, 86. 



Nicot'ana. Calyx urceolate or campanulate, 5-cleft. Corolla fun- 

 nel-form, the limb 5-lobed and plaited. (Tobacco.) Solanacece, 88. 



Ophiorhiza. Mitreola. Calyx 5 cleft. Corolla 5-cleft, funnel-form. 

 Stigmas 2. Capsule many-seeded. Gentianacece, 82. 



Bumelia. Calyx 5-parted. Corolla salver-form, deeply 5-parted. 

 Corona 5-leaved. Fruit a drupe, 1-seeded by abortion. Sapotacece,16. 



3. Capsule, 3 — 5-celled. 



Phlox. Calyx prismatic, 5-parted. Corolla salver-form, 5-lobed, with 

 the tube slightly curved. Polemoniacece, 84. 



Polemonium,. Calyx campanulate, 5-cleft. Corolla rotate. Stamens 

 bearded at the base. Polemoniacece, 84. 



Diapensia. Calyx 5-sepaled, with 3 bracts at the base. Corolla sal- 

 ver -form. Stigmas 3. Capsule 3-celled, many-seeded. Hydrophylla- 

 c&e, 85, 



