310 ERICACEAE. 



1. P. aphylla Smith. Leafless parasite; stems red, often many and clus- 

 tered, from ;i scaly-bracted rootstock, 8 to 16 in. high; calyx red, its lobes 

 triangular-ovate, Vi the length of the obovate or elliptic whitish petals; capsule 

 3 lines broad, its sutures somewhat cobwebby in dehiscence. 



Bare in our district: Santa Cruz Mts., M. Grace Bowe; Mt. Tamalpais; 

 Bowel] Mt.; Mt. St. Selena and northward to Mt. Shasta. Also in the Sierra 

 Nevada. The following species have a cluster of radical leaves and (except 

 the last) B long declined and recurved style 



P. picta Smith. White-veined Shin-leaf. Leaves ovate or elliptic, very 

 coriaceous, mottled or veined with white; petiole narrowly winged; calyx-lobes 

 broadly ovate; corolla greenish white or brownish. — Pine forests from Mendo- 

 eino Co. to Mt. Shasta and southward in the Sierra Nevada. 



J*, rotundifolia L. var. bracteata Gray. Leaves orbicular and compara- 

 tively thin, unmottled, on slender unwinged petioles as long as the blade; 

 calyx-lobes triangular-lanceolate; corolla rose-purple. — With the preceding. 



P. secunda L. Leaves ovate, thin and greenish ; flowers white, in a one- 

 sided raceme; petals with two tubercles at base inside. — Northern Sierra 

 Nevada. 



3. PLEURICOSPORA Gray. 



Whitish or light brown saprophyte 1 with imbricated scales. Sepals 4 or 5, 

 scale-like, the margins fimbriate. Petals 4 or 5, plane, rather shorter than the 

 sepals. Stamens 8 or 10; filaments ligulate-filiform, glabrous. Ovary ovate, 

 1-celled, the 4 or 5 parietal placentae large; style columnar; stigma umbilicate- 

 capitate. Fruit a watery berry. (Greek pleuricos, at the side, and spora, seed, 

 the placentae parietal.) 



1. P. fimbriolata Gray. Plant spike-like, 2 to 8 in. high; spike dense; 

 corolla whitish, 5 lines long. 



Mariposa Grove, Bolander; Lake Tahoe, Katherine Chandler; Healdsburg 

 (Zoe, iv, 154). The following allied plants are saprophytes with red, brown 

 or dull white herbage and hypogynous flowers in a single terminal spike: 



Allotropa vikoata T. & G. Keddish or whitish rather fleshy plant; corolla 

 none; ovary 5-celled, as in the next two. — Sierra Nevada in pine woods; Mt. 

 Shasta ; Humboldt Co. 



Pterospora andromeda Nutt. Pine Drops. Reddish brown plant; flowers 

 racemose; corolla sympetalous; anthers 2-awned at the back. — Sierra Nevada; 

 Lake Co. and northward. 



Sarcodes sanguinea Torr. Snow Plant. Bright red or scarlet plant ; flowers 

 in a fleshy scaly spike; corolla sympetalous; anthers not awned. — Sierra 

 Nevada. 



Hemitomes congestum Gray. Spike capitate, often subterranean ; sepals 

 2; corolla tubular-urn-shaped, 4 or 5-lobed; ovary 1-celled, apparently several- 

 celled by the meeting of adjacent placental plates. — Coast Ranges near the 

 coast, northward. 



4. LEDUM L. Labrador Tea. 



Evergreen shrubs with fragrant herbage. Leaves entire, the margin disposed 

 to be revolute. Flowers white, small, in terminal umbel-like corymbs from 

 large Bcaly buds. Pedicels Blender. Sepals 5, almost distinct, very small. 

 I'.tals 5, obovate and spreading. Stamens 5 to LO. Capsule 5-celled, dehiscing 

 from th. base upward, many seeded; placentae borne on the summit of the axis 

 of the fruit. (Greek Ledon, ancient name of the Cistus.) 



