648 MENTHACEAE 



the upper sterile or wanting; style about equaling the corolla-throat, slightly pubescent below 

 the stigma-lobes; nutlets rotund-ovoid, 1-1.3 mm. long. 



Hillsides and valleys, Upper Sonoran Zone; California Coast Ranges from Humboldt and Lake Counties to 

 San Luis Obispo, and in the foothills of the Sierra Nevada. Type locality: hillsides, Martinez, Contra Costa "> 

 County, California. April-June. 



4. Pogogyne zizyphoroides Benth. Sacramento Pogogyne. Fig. 4429. 



Pogogyne zizyphoroides Benth. PI. Hartw. 330. 1849. 



Hedeomoides ziziphoroides Briq. in Engler & Prantl, Nat Pflanzenf. 43": 295. 1897. 



Stems simple or branched, erect or somewhat spreading, 2-20 cm. high. Leaves 15-20 mm. 

 long, ovate to elliptic, narrowed to a slender petiole about equaling the blade, the lower glabrous, 

 suffrutescent, bristly conspicuously ciliate on the margins of the petioles and lower part of the 

 blade ; inflorescence a short, subcapitate spike, or in vigorous specimens, these subtended by 2-3 

 distinct verticils ; floral bracts equaling or exceeding the calyx, spatulate to narrowly oblanceo- 

 late, conspicuously ciliate on the margins ; calyx-tube 3-5 cm. long, glabrous or rarely bristly 

 on the nerves ; lower calyx-lobes 3-6 mm. long, the upper a little shorter, all bristly on the 

 margins and the nerves ; corolla lavender, 4-8 mm. long ; lower pair of stamens fertile, the upper 

 pair sterile and clavate; nutlets obovoid, dark brown, 1.6-2.5 mm. long. 



Dry beds of winter pools, frequently alkaline soils, Upper Sonoran Zone; Jackson County, Oregon, to the 

 San Francisco Bay Region and the lower San Joaquin Valley. Type locality: "In valle Sacramento." Collected 

 by Hartweg. March-May. 



22. ORIGANUM [Tourn.] L. Sp. PI. 588. 1753. 



Perennial herbs or some species shrubby, with fairly small entire or toothed leaves. 

 Flowers small, pink or purplish, in dense terminal glomerules, bracteate. Calyx cam- 

 panulate or ovoid, about 13-nerved, 5-toothed and more or less 2-lipped, villous in the 

 throat. Corolla 2-lipped, the upper lip erect, emarginate or 2-lobed, the lower spreading, 

 3-cleft ; tube straight, usually pubescent in the throat. Stamens 4, didynamous, ascending ; 

 anther-sacs divergent. Style 2-cleft at the summit. Nutlets ovoid or oblong, smooth. 

 [Name Greek, meaning mountain joy.] 



An Old World genus of about 30 species. Type species, Origanum vulgare L. 



1. Origanum vulgare L. Wild Marjoram. Fig. 4430. 



Origanum vulgare L. Sp. PI. 590. 17S3. 



Perennial from nearly horizontal rootstocks, villous-pubescent with more or less curved hairs ; 

 stems rather slender, erect or somewhat decumbent, 3-8 dm. high. Leaves petioled, ovate, obtuse 

 or acutish at apex, rounded at base, entire or obscurely denticulate, 2-3 cm long, often with 

 smaller ones in the axils or on short axillary branches ; flower-cluster often cymose at the apex, 

 3-5 cm. broad; bracts usually purplish, ovate to oval, about 3 mm. long; calyx 2.5-3 mm. long, 

 the 5 teeth about equal, short, conspicuously ciliate on the margin ; corolla purple, varying to 

 pink or white, 5-6 mm. long, the lobes of the lips rounded; style and the two longer stamens 

 exserted. 



Borders of woods or thickets, locally naturalized from Europe; western Oregon (Clackamas County) and 

 California Coast Ranges (Santa Cruz Mountains). Aug.-Oct. 



23. MONARDELLA Benth. Lab. Gen. & Sp. 331. 1834. 



Aromatic annual or perennial herbs, with small entire or serrate leaves. Flowers 

 borne in terminal heads subtended by broad often colored bracts. Calyx tubular, about 

 equally 5-toothed, the tube usually 15-nerved, glabrous in the throat; upper lip erect, 

 2-cleft, the lower 3-parted, all the lobes linear to narrowly oblong. Stamens 4, distinct 

 and straight, exserted; anther-cells strongly or moderately divergent. Style unequally 

 2-cleft at apex. Nutlets broadly oblong, smooth. [Name diminutive of Monarda because 

 of the resemblance to that genus.] 



A genus of about 20 species, inhabiting western United States and adjacent Mexico, but predominantly 

 Californian. Type species, Monardella odoratissima Benth. 



Flowers in rather loose heads, scarlet or yellow; calyx 12-28 mm. long; corolla-tube well-exserted, much longer 

 than the lobes; pollen-sacs strongly divaricate; perennials. {Macranthae.) 

 Corolla-tube narrowly funnelform; calyx 3-4 mm. wide; anthers 1.25 mm. long; corolla scarlet or yellowish 



in one variety. 1. M. macrantha. 



Corolla-tube narrowly cylindric, commonly yellow, scarcely over 1 mm. wide; calyx 2 mm. wide; anthers 

 0.7. long; corolla commonly yellow. 2. M. nana. 



Flowers in dense heads, rose-purple to white; calyx 5-10 mm. long; corolla-tube not long-exserted, but little 

 longer than its lobes; pollen-sacs not strongly divaricate; annuals or perennials. (Pycnanthae.) 



Perennials, usually woody at the base. 



Leaves plane, not undulate or crisped on the margins. 



Plants low cespitose dwarfs, usually not over 6 cm. high, densely cinereous-pubescent; leaves 4-7 



mm. long, usually denticulate. 3. M. cinerea. 



Plants taller, variously pubescent or glabrate; leaves normally over 1 cm. long and usually entire 

 except in M. villosa. 

 Bracts herbaceous and more or less foliar and reflexed; leaves more or less villous and usually 

 serrulate. 4. M. villosa. 



