Xlii INTRODUCTION 



polysymmetric or monosymmetric flowers ; sepals 3 — 5 ; petals 

 3 — 5 ; stamens 5 — 10 ; carpels 3 — 5; ovules i or more in each 

 chamber, (p. 99.) 



Order 21. IlidnecE (The Holly). — A tree with evergreen 

 spinous leaves and small white flowers ; sepals, petals, stamens, 

 and carpels 4 — 5 each ; fruit berry-like, with 4 one-seeded stones, 

 (p. 106.) 



Series 2. Calyciflbrcc. — Petals and stamens perigynous or 

 epigynous; ovary superior or inferior.^ (pp. 107-228.) 



§ Stamens perigynous ; ovary generally superior ^ 



Order 22. Celastrinece (The Spindle-tree). — A shrub or tree, 

 glabrous ; with opposite leaves ; small greenish flowers ; pink, 

 fleshy capsules, and orange seeds ; sepals, petals, stamens, carpels, 

 and seeds usually 4 each. (p. 108.) 



Order 23. Rhdmne(B (The Buckthorn Family). — Shrubs with 

 simple leaves, small, greenish flowers, and berry-like fruit ; sepals, 

 petals, and stamens 4 — 5 each ; stamens opposite petals ; ovary 

 3-chambered; chambers i-ovuled. (p. no.) 



Order 24. Acerinece (The Maple Family). — Trees with opposite 

 palmately-lobed leaves and small, green, polysymmetric flowers ; 

 sepals and petals 4 — 9 each ; stamens 8, on a disk ; carpels 2 ; 

 fruit a double samara, (p. in.) 



Order 25. LeguininoscE (The Pea Family). — Shrubs or herbs 

 with scattered, stipulate, usually compound leaves and papilion- 

 aceous flowers ; sepals and petals 5 each ; stamens 10, monadelph- 

 ous or diadelphous ; carpel i ; fruit a pod. (p. 113.) 



Order 26. RosdcecE (The Rose Family). — Trees, shrubs, or 

 herbs with scattered, stipulate, simple or compound leaves and 

 polysymmetric flowers ; sepals 4 — 5 ; petals 4 — 5 ; stamens 

 many ; carpels, i, 2, 5, or many, free or united \ fruit various. 



(P- 137.) . ^ 



Order 27. Saxifrd^ecB (The Saxifrage Family). — Shrubs and 



herbs with polysymmetric flowers ; sepals 4 — 5 ; petals 4 — 5 ; 



stamens 4 — 10; carpels 2 — 4, united, (p. 165.) 



Order 28. Crassiddcece (The Stonecrop Family). — Succulent 



herbs with simple leaves and polysymmetric flowers; sepals, 



petals, and carpels 3 — 20 each, usually 5 ; stamens usually twice 



as many as the petals; carpels free, forming follicles, (p 172.) 

 Order 29. DroserdcecB (The Sundew Family). — Small viscid 



marsh plants with radical leaves, small white polysymmetric 



1 The stamens are sometimes indistinctly perigynous in Leguminosae, Saxifrageae, Crassu- 

 licese, and Droseraceae. 



2 It is inferior in some Rosaceae and Saxifrdgese. 



