xlii 
CLASSES, DIVISIONS, AND ORDERS. 
14. Caryoj)h]illactm. Pet. 5 or 4. Stam. 8— 10, rarely 
5 or 4. Caps. 1 -celled with a free central placenta. — L. 
opposite 50 
15. Malvaceae. Pet. 5, twisted. Stam. many, mona- 
delphous. Anth. 1 -celled. Ovary of several carpels • 
round a common axis. L. alternate 69 
16. Tiliaceoe. Pet. 5. Stam. many, free or polyadel- 
phous. Anth. 2-celled. Ovary 5-celled. — Trees with 
alternate leaves 71 
17. Hypericacece. Pet. 5, twisted. Stam. many, in 
3—4 bundles. Anth. a-celled 72 
18. Aceracecp. Pet. 5 (in our plants), imbricate. Stam. 
distinct, generally 8, on an hypogynou.s disk. Fr. of 2, 
winged, 1-seeded nuts. — Trees with opposite leaves 75 
19. Geraniacew. Pet. 5, twisted. Stam. monadel- 
phous. Fr. of 5 carpels cohering together with their 
styles round a long beaked persistent axis, from which 
they ultimately separate with elasticity 75 
20. Balsaminaceoi. Pet. 5, irregular, the lateral united 
in pairs, imbricate. Stam. 5. Anth. slightly cohering. 
Fr. of 5 carpels with elastic valves 79 
21. Oxalidacece. Pet. 5, twisted. Stam. 10. Anth. 
free. Caps. 5-valved. — L. usually ternate 80 
22. Linacece. Pet. 4 — 5, twisted. Stam. 4 — 5, with 
intermediate teeth, from an hypogynous ring. Carp, 
separating but leaving no central axis 81 
(Ord. 48. Aquifoliaceiv with sep. free, cor. 4 — 5-parted, 
stam. 4 — 5, an evergreen shrub, is sometimes placed here.) 282 
(Ord. 71. Empetrac€Lb with dioecious flowers, a heath- 
like evergreen shrub, is .sometimes placed here.) 366 
Division 2. CALYCI FLORAE. 
* Stam. and petals mosthj perigynous. 
23. Celastracea'. Fl. greenish. Stam. alternating with 
the petals and inserted with tliem in a lleshy disk 
surrounding the ovary. — Trees or shrubs 82 
