354 HYDROPHYLLACE.E. (wATERLEAF FAMILY.) 



oblong, mostly obtuse, serrulate (!' loug), contracted at the base into a distinct 

 petiole ; drupe oval-oblong. Rocky banks, Florida, Georgia, and westward. 



3. F. pubescens, Nutt. Differs from the last only in its denser pubes- 

 cence, longer pedicelled drupe, and striate nut. With the preceding. 



4. P. acumiliata, Poir. Glabrous or slightly pubescent when young; 

 brauchlets sometimes spiuescent ; leaves (2' -3' long) ovate-lanceolate or ovate 

 and tapering-acuminate at both ends, somewhat serrulate, slender-petroled ; 

 drupe elongated-oblong, mostly pointed when young. Wet grounds, Georgia 

 to Tennessee, and northwestward. 



ORDER 98. HYDROPHYLLACE^. (WATERLEAP 



FAMILY.) 



Herbs, with alternate or (the lowest) opposite leaves, and regular 

 flowers, either solitary in the axils, or in 1-sided recurved spikes or 

 racemes. Calyx 5-parted, persistent. Corolla 5-lobed, convolute or 

 imbricate in the bud. Stamens 5, inserted on the base of the corolla, 

 and alternate with its lobes. Ovary 1-celled, with 2 parietal placentae, 

 or 2-celled by the introversion of the placentae, each bearing 2 or more 

 ovules. Styles 2, separate or more or less united. Capsule 2-valved. 

 Seed reticulated. Embryo small, in hard or fleshy albumen. 



Synopsis. 



TRIBE I. HYDROPHYLLE^E. Capsule 1-celled. Styles partly united. Albumen 

 cartilaginous. Leaves piuuately or paluiately lobed. 



* Lobes of tbe corolla convolute in the bud, 



1. HYDROPHYLLUM. Calyx without appendages. Stamens exserted. Stems erect. 



2. NEMOPHILA. Calyx appendaged at the sinuses. Stamens included. Steins prostrate. 



* * Lobes of the corolla imbricated in the bud. 



3. PHACELIA. Calyx without appendages. Capsule 4 - many-seeded. 



TRIBE II. HYDROL.K.E. Capsule 2-celled. Styles separate. Albumen fleshy. 

 Leaves entire. 



4. HYDROLEA. Corolla rotate. Capsule globose. 



5. NAMA. Corolla funnel- or salver-shaped. Capsule oblong. 



1. HYDROPHYLLUM, L. WATERLEAF. 



Calyx 5-parted, the lobes subulate ; without appendages. Corolla broadly 

 tubular, 5-cleft, with 5 linear appendages opposite the lobes. Stamens and 

 style exserted : anthers linear. < )vary hispid. Placenta; thick and fleshy, 

 connected with the pericarp at the base and apex ; each 2-ovuled. Style fili- 

 form, 2-cleft. Capsule globose, 2-valved, 1 -4-seeded. Erect perennial 

 mostly hairy herbs, with loug-petioled pinnately or palmately divided leaves, 

 and white or blue flowers in peduucled cymes, without bracts. 



1. H. Virginicum, L. Stem leafless below, sprinkled, like the leaves, 

 with rigid hairs; leaA-es pinnately divided into 5-7 ovate cleft or toothed 

 lobes, paler beneath ; peduncles forking, longer than the petioles ; cymes 



