A Synopsis of Plant Phyla 77 



Family 218. Cynomoriaceae, Parasitic rhizomatous fleshy 

 plants with spicate, small, apetalous flowers. Cynoniorium. (Pf. 

 Ill, I, 250.) 



Family 219. Aristolochiaceae. Herbaceous or shrubby plants, 

 with alternate leaves ; petals absent ; stamens 6, rarely more ; pistil 

 4- or 6-celled, inferior; ovules numerous, on axile (or protruding- 

 parietal) placentae. Asaruni, Aristolochia. (Pf. Ill, i, 264.) 



Family 220. Rafflesiaceae. Fleshy, parasitic herbs, leafless or 

 nearly so; petals 4 or o; stamens 8 to many; pistil i -celled or im- 

 perfectly many-celled, inferior; ovules minute, very numerous, on 

 parietal or pendulous, folded placentae. Rafllesia, Cyliiius. (Pf. 

 Ill, I, 274.) 



Family 221. Hydnoraceae. Parasitic, succulent, tropical herbs; 

 perianth single, valvate ; stamens numerous, seeds very numerous. 

 Hydnora. (Pf. Ill, i, 282.) 



Order Cactales. Flowers regular or nearly so, perfect ; pistil 

 syncarpous, i-celled, with parietal placentae, its ovary inferior; 

 style divided at the apex ; endosperm present or o ; embryo curved ; 

 fleshy-stemmed, mostly leafless, plants. 



Family 222. Cactaceae. With the characters of the order. 

 Pcircskia, Opuntia, Ccrcns, Mclocachis, Cactus, Rhipsalis. (Pf. 

 Ill, 6a, 156.) 



Order Loasales. Flowers usually regular, perfect or diclinous ; 

 pistil syncarpous, i -celled, its ovary usually inferior; placentae 

 parietal ; styles free or connate ; leaves ample, entire, lobed, or 

 dissected. 



Family 223. Loasaceae. Herbs with opposite or alternate 

 leaves ; flowers perfect, sepals and petals dissimilar ; stamens in- 

 definite ; ovary inferior ; endosperm fleshy or o. Mcntzelia, Loasa. 

 (Pf. Ill, 6a, 100.) 



Family 224. Cucurbitaceae. Mostly climbing or prostrate 

 herbs and undershrubs, with alternate leaves ; flowers diclinous ; 

 stamens definite (usually 3) ; ovary inferior; endosperm o. Me- 

 lothria, Momordica, Luifa, Ciiriillus, Ciicnmis, Lagciiaria, Citcnr- 

 bita. (Pf. IV, 5, I.) 



Family 225. Begoniaceae. Mostly herbs with alternate leaves ; 

 flowers diclinous ; stamens indefinite ; ovary inferior, usually 3- 

 angular; endosperm Httle or o. Begonia. (Pf. Ill, 6a, 121.) 



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