LABIATE. 



65 



C. occidentalis. According to Greene this species is distinguished by broad keeled 

 bracts which completely cover the calyx, and flowers a third larger than those of C. 

 luteolus, which has small braets growing 6 lines or more below the flower. The former 

 grows south of Monterey, and the latter north. But Gray considered the latter as a 

 form of C. occidentalis. 



C. subacaulis of Bay-Reg. Bot. is C. Californicus, Choisy. 



OROBANCHACE^E. 



Root-parasitic herbs, destitute of leaves and green color. 

 ulariacece by the 1-celled ovary: the p lacentse parietal. 

 p. 169. 



Distinguished from Scroph- 

 Key to genera and species, 



Aquatic herbs. Upper lip of corolla interior in the bud: lower lip with a palate pro- 

 jecting into the throat and a spur, 3-lobed. Key to genera and species, p. 169. 



CL 



RIGHT-HAND FIG. a. Flower of 

 Sphacele calycina. 6. Same With 

 corolla cut to show stamens, 

 pistil, and bairy ring inside, e. 

 Fruit (4 globular akenes) of tbe 

 same, lying in the bottom of the 

 calyx, c. Flower and buds, 

 showing inflorescence of Tri- 

 chostema lanceolatum. d. Ripe 

 fruit of the same (4 triangular 

 akenes in the persistent calyx). 



LABI AT JE. 



Chiefly aromatic herbs with square stems, opposite 

 simple leaves, and no stipules, bilabiate corolla, didy- 

 namous or diandrous stamens, and a 4-lobed ovary with 

 a single style, forming seed-like nutlets in the bottom of 

 the persistent calyx. Flowers perfect, axillary. Calyx 

 3-5 toothed or cleft, or bilabiate. Stamens on the tubes 

 of the corolla. Style, 2-cleft at the apex, often un- 

 equally so, or one of the lobes obsolete: stigmas minute. 

 Key to genera and species, p. 170. 



MENTHA. 



The following mints have run wild in moist places: 



M. viridis, L. (Spearmint.) Green and glabrous, 

 erect: leaves oblong-lanceolate, acute, incisely serrate, 

 or nearly so: flowers crowded in terminal spikes. 



M. piperita, Huds. (Peppermint.) Darker green: 

 leaves petiolate, ovate to lanceolate: flowers in shorter, 

 thicker spikes. 



M. Pulegium, L. (Pennyroyal.) Prostrate, much- 

 branched: leaves smaller than those of the preceding, 

 usually less than an inch long: calyx with a hairy ring. 



MONARDELLA. 



M. Sheltonii, Torr, in Bay-Reg. Bot. is a variety of M. villosa, Benth. 

 Botany 5 



