2 DICOTYLEDONOUS OR EXOGENOUS PLANTS, 
§ 4. Ovary syncarpous; placentas axile. 
ig wanting; sepals imbricate. 
GUTTIFERAE. Sepals and age Appocreaigpie As ste or aah — indefinite; ovary 
Leela os with a single ovule us; 
NSTROEMIACEAE. feccag at petals pentamerous ©), ‘the latter often cohering 
at oe cae, stamens indefinite; leaves alte 
XVII. O 
XALIDACEAE. Sepals and petals 5; avin 10, monadelphous; leaves of 3 folioles. 
*% Disk wanting ; sepals valvate. 
XI. st ea risa indefinite, mis cree ge ous; anthers 1-celled. 
XIV. BUETTNERIACEAR. Stamens mostly definite, nadelphous ; euieciale 2-celled. 
XV. caus Saas indefinite, free or Satta keky cds anthers 2-celled. 
*** Disk reduced to 5 glands, rarely wanting. 
XVI. GERANIACEAE. Stamens definite; ket 3—5-lobed, the ca seceding at maturity 
from a central axis; leaves perdensresy alternat 
*#** Disk annular, inside the s 
asa a AE. beg es abruptly he ag aaa fruit spinescent. 
. Rurac Leaves entire and shape impari-pinnate and alternate, not 
ieeceieia: Peta = ey or oF oie as many = petals sometimes monadelphous; ovary 
4-celled and in fruit 4- a 16 fa le ca 
XIX, b. MeLIaAcEan. Lea es nnate or compoun alternate, not stipulate; stamens 
twice as many as petals, cna monadelphous Gay ‘several-celled, entire in fruit. 
*#4%* Disk annular, outside the stamens. 
XXIII. SAprnpacEak. Leaves entire, impari-pinnate or dissected, alternate, not stipulate; 
— = isomerous with the petals, or the flowers irregular, the petals sometimes 
anting; ovary 3-celled. 
Suscnass IT. sy cn Petals free. Stamens perigynous or epigynous. Petals want- 
ing in Acaena and Sesuviw 
§ 1. Disk conspicuous, perigynous or hypogynous; flowers small, regular. 
aes CELASTRACEAE. Stamens alternate with the petals; seeds albuminous; leaves entire. 
XX. RuaMNACEAE, Stamens opposite the small petals; seeds us ually albuminous ; 
leaves entire. 
Vv. Fraga ar alternate with the petals or twice as many; no 
albumen ; leayes impari-pinn 
§ 2. Carpels ag: or connate only at the base (or in some Rosaceae syncarpous and adnate 
the calyx); the _ ascending, or affixed to the inner angle. 
XXV. LeGumrNosar. Flowers irregular and imbricate, or (in migra regular = 
valvate ; samens definite se carts! pei bea or almost hypogyno 
indefinite ; rpels 1; fruit a 2-val 
ACEAE. Flowers regular; petals imbricate when present; stamens mostly 
indefinite, ous x 
XXVIIL Crassvutackar. Flowers regul isomerous, the stamens in 1 or 2 sa 
carpels connate 
ar, 
at the base; ovules many in each carpel:; our gen 
A fleshy herb, y arpel; petals united in g 
§ 3. Ovary syncarpous, superior, with axile placentas; ovules gunduions, tor fil 
in each cell. 
XX. ILiciNzak. Corolla monopetalous in our genus; ovary many-celled; stigma sessile. 
§ 4. Ovary syncarpous, with axile placentas and many seeds on each 
oe ce iced inferior; style entire; lobes of calyx 
vi i Ge superior, 2-celled; style entire; lobes of calyx valvate; 
placenta. 
imbricate or gaping; 
