PYROLACEAE. 27 1 



Newberrya congesta (Gray) Torr. (Hemitomes congestum Gray; New- 

 berrya longiloba Small.) Whole plant white or brownish, glabrous, 10-20 cm. 

 high; scale-like leaves imbricated, oval to oblong, obtuse, rather thin, obscurely 

 erose, passing into the similar bracts; flowers in a short crowded raceme; 

 corolla-lobes ovate, obtuse to acute, hairy within. 



In deep woods, British Columbia to Oregon, rare. 



366. PLEURICOSPORA. 



Stout fleshy white herbs without chlorophyll and with the 

 flowers crowded into a dense spike; leaves scale-like; calyx of 

 4-5 sepals; corolla of 4-5 plane petals; stamens 8 or 10; filaments 

 glabrous; anthers introrse, the cells opening longitudinally from 

 base to apex; ovary ovoid; style columnar; stigma depressed 

 capitate to funnelform; placentae parietal, commonly 8. 



Petals oblong or oblong-lanceolate, as long as the sepals; lower 



scales entire. P. fimbriolala. 



Petals spatulate, much longer than the sepals; lower scales 



laciniate. P. longipetala. 



Pleuricospora fimbriolata Gray. Whole plant white, fleshy, glabrous, 

 stout, 5-20 cm. high; scale-like leaves numerous, the lower ovate and entire, 

 the upper narrower and fringed; flowers in a dense corymb; bracts fringed, 

 as long as the corolla. 



In deep coniferous woods in the mountains, rare; British Columbia to 

 California. 



Pleuricospora longipetala Howell. Stem slender, 10-15 cm. high; scale- 

 like leaves well-imbricated, lanceolate, acuminate, laciniately toothed; flowers 

 white or yellowish, numerous, in a dense oblong raceme; sepals lanceolate, 

 acute or acuminate, laciniately toothed, about as long as the bracts; petals 

 narrowly spatulate, 12 mm. long, much longer than the sepals, the obtuse apex 

 fimbriate. 



In dense woods, near the hot springs in Clackamas County, Oregon, Howell. 



367. PITYOPUS. 



White herb, glabrous or nearly so; leaves scale-like; inflores- 

 cence a dense bracteate spike; sepals 4 or 5, distinct, persistent; 

 petals as many, pubescent; stamens 8 or 10; filaments pubescent; 

 anthers short; ovary 1-celled, ovoid, 4-5-lobed, each lobe 2- 

 ribbed; style stout; stigma truncate, annular; ovules many. 



Pityopus oregona Small. Whole plant white and glabrous; stem stout, 

 about 10 cm. high; scales triangular or the upper lanceolate, acute, entire or 

 erose, 1-2 cm. long; bracts lanceolate to spatulate; sepals rhomboid-lanceolate, 

 12 mm. long; petals oblong, obtuse, pubescent within, as long as the sepals. 



In dense woods, north of Mount Hood, Oregon, Howell; and the same or a 

 very similar species {Monotropa californica Eastwood) in Marin County, 

 California. 



368. ALLOTROPA. 



Reddish chlorophyll-less herbs with numerous scale-like leaves ; 

 flowers in a spike; sepals 5, roundish, persistent; petals none; 

 stamens 10, glabrous; style at first short, at length longer; 



