90 SALICACEAE. 



19. APLECTRTJM Nutt. Caulescent herbs with a chain of corms. Leaf 

 solitary terminating the corm, decaying before the lateral scaly stem arises. 

 Flowers few in a terminal raceme. Perianth brownish-yellow mixed with 

 purple. Lateral sepals narrow, slightly curved. Petals slightly longer than the 

 sepals. Lip dilated, 3-lobed, 3-ridged above the claw, spurless. Capsules 

 drooping. . . i > 



1. A. hyemale (Muhl.) Torr. Leaf autumnal, or slightly earlier; blade elliptic, 

 4-20 cm. long: flower-stem vernal, 2-6 dm. tall: lateral sepals linear-spatulate, 

 10-13 mm. long: petals spatulate: lip 11-12 mm. long, the blade with 2 oblong- 

 ovate lateral lobes and, a suborbicular crenulate middle lobe: capsules 2-2.5 cm. 

 long. Not common, in rich woods. Spr. ADAM-AND-EVE. PUTTY-ROOT. 



SUBCLASS 2. DICOTYLEDONES. 



Stems consisting of pith, wood, and bark (endogenous in rare 

 cases) . Early leaves opposite. 



Series 1. CHORIPETALAE. 



Petals separate and distinct from each other, or wanting. 



Order PIPERALES. 



Herbs of wet or moist places, usually with rootstocks, or shrubs or 

 trees. Leaves with simple blades. Flowers perfect or unisexual. Perianth 

 wanting. Androecium of several stamens. Gynoecium of 1, or of several 

 distinct or united carpels. Fruit baccate, drupaceous, capsular, or nut-like. 



FAMILY 1. SAURURACEAE. LIZARD'S-TAIL FAMILY. 



Herbs with rootstocks. Leaves alternate, sometimes basal. Flowers 

 spicate or racemose. Androecium of 3-9 stamens. Gynoecium of 3 or 4 

 distinct or nearly distinct carpels. Stigmas simple. Fruit capsular. 



1. SAURTJRUS [Plum.] L. Marsh herbs. Leaf-blades membranous, cor- 

 date. Eaceme with a drooping tip, the bractlets adnate to the pedicels or to the 

 ovaries. Carpels 3 or 4. Mature carpels veiny, opening introrsely. 



1. S. cernuus L. Stems 3-12 dm. tall: leaf -blades ovate to ovate-lanceolate, 

 8-15 cm. long, acuminate, petioled: racemes 1-2 dm. long: filaments clavate, 

 about 4 mm. long : fruit depressed, the carpels about 2 mm. high. Common, in 

 streams. Sum. LIZARD 'S-TAIL. 



Order SALICALES. 



Shrubs or trees. Leaves alternate: blades simple, entire or toothed. 

 Flowers dioecious, in aments, the staminate consisting of an androecium of 

 2 or more stamens, the pistillate consisting of a gynoecium of 2 or 4 

 united carpels. Ovules numerous. Fruit capsular. 



FAMILY 1. SALICACEAE. WILLOW FAMILY. 



Shrubs or trees, with soft wood. Leaf -blades very narrow to very 

 broad. Aments erect or drooping, the bracts mostly ciliate or toothed. 

 Capsules narrowed to the apex. Seeds usually with a tuft of hairs. 



