76 VIOLACEiE. SoLBA. 



gland above the middle. Stigma uncinate, with a pore at the extremity of the point. 

 Capsule somewhat 3-sided, surrounded at the base by the concave torus. Seeds 6-8, 

 very large. — An herbaceous perennial herb, with alternate cauline leaves and small flowers 

 on sohtary or geminate axillary peduncles. 



1. SoLEA coNCOLOR, Ging. Green-Jhwered Solea. 



Ging. in DC. prodr. I. p. 306 ; Torr. ^ Gr.fl. N. Am. 1. p. 144." Viola concolor, Forst. 

 in Linn, trans. 6. p. 308. t. 28 ; Nutt. gen. 1. p. 151 ; Schwein. I. c. ; Torr. fl. 1. p. 258. 

 V. striata, Spreng. pug. rar. l.p. 22. lonidium Sprengelii, Rcem. ^ Schult. syst. 5. j9.401. 



Plant somewhat hairy or pubescent, 1-2 feet high, simple, leafy. Leaves 3-7 inches 

 long and 1-2 inches wide, oblong-lanceolate, attenuate at each extremity, entire or sparingly 

 toothed. Peduncles 3-4 lines long, recurved. Flowers about one-third of an inch long, 

 greenish. Sepals as long as the corolla, lanceolate, smooth. Lowest petal twice as large as 

 the others. Filaments produced a little above the anthers : nectariferous glands sessile, con- 

 fluent. Style stout, distorted near the base : stigma smooth, not margined. Capsule nearly 

 an inch long. Seeds globose, obovate, with a conspicuous raphe and caruncle. 



Wet shady woods in the western part of the State ; rare. Fl. May - June. Fr. July. 

 A homely weed-like plant, with inconspicuous flowers. 



Order XV. CISTACE^. Juss. The Rock-rose Tribe. 



Calyx of 5 persistent sepals; the two outer ones usually small, or sometimes 

 wanting ; the three interior imbricated, and somewhat twisted in estivation. 

 Corolla of 5 (rarely 3, or by abortion none), hypogynous, mostly very fuga- 

 cious, usually crumpled in aestivation, and twisted in a direction contrary to 

 that of the sepals. Stamens indefinite, or rarely few, hypogynous, distinct : 

 anthers short, innate. Style single : stigmas as many as the placentae, more or 

 less united. Capsule 3 - 5-valved, 1-celled with parietal placentae, or imper- 

 fectly 3 - 5-celled, with dissepiments proceeding from the middle of the 

 valves, and bearing the placentce at oi* near the axis. Seeds few or numerous, 

 orthotropous (or very rarely somewhat anatropous), with mealy albumen. 

 Embryo usually curved, or spirally convolute. — Herbs, or low shrubby plants; 

 with simple and entire leaves, opposite or alternate, with or without stipules. 



