20 NORTH AMERICAN FLORA [VoLuME 29 
bracts; sepals linear, hispidulous-puberulent, shorter than the corolla; corolla 6-8 mm. long, 
light-violet with a yellowish throat; limb 4-6 mm. broad, reflexed in fruit, sinuately 8-lobed 
with emarginate lobes. 
TyPH Locality: Valladolid, Morelos. 
DistrrBuTion: San Luis Potosi to Sinaloa and Oax: 
aca. 
IuLustrations: Abh. Nat. Ges. Halle 11: pl. 2, f. 2-4, 7, 12-19; pl. 3, f. 8; E. & P. Nat. Pal. 
41: 7.7, H, J (as L. caerulea). 
2. PHOLISMA Nutt.; Hook. Ic. pl. 626. 1844. 
Succulent parasitic herbs. Flowers perfect, spicate, ebracteate. Sepals 5 or 6, linear 
or slightly clavate, puberulent. Corolla narrowly funnelform, nearly regular, with 5 or 6 
rounded, plicately imbricate lobes. Stamens 6, rarely 5, adnate to above the middle of the 
tube of the corolla; anthers oblong-ovate, obtuse, the sacs parallel, dehiscent longitudinally. 
Ovary subglobose, 6—10-carpellary, by false partitions 12—20-celled; stigma 6—10-lobed. 
Type species, Pholisma arenarium Nutt. 
1. Pholisma arenarium Nutt.; Hook. Ic. pl. 626. 1844. 
Lennoe arenaria Fourn. Bull. Soc. Bot. Fr. 16: 11. 1869. 
Pholisma depressum Greent, Bull. Calif. Acad. 1: 198. 1885. 
A brownish fleshy plant; stem above ground 1-2 dm. high; scales erect, small, oblong; 
spike 3-8 cm. long, 2-3 em. thick; sepals linear or somewhat clavate, glandular-puberulent, 
shorter than the corolla; corolla purple, 6-8 mm. long, narrowly funnelform; limb 3.5-4.5 mm. 
broad; lobes semiorbicular, sinuate. 
‘Tyre Locality: Given as “Monterey and St. Diego,’ but the type was collected at the latter 
PP arawesn: In sand, parasitic on the roots of Eriodictyon, Clematis, Hymenoclea, and 
Chrysothamnus and other shrubby composites; southern California, Lower California, and the 
island of Socorro. : 
ILLUSTRATION: Hook. Ic. pl. 626. 
3. AMMOBROMA Torr.; A. Gray, Mem. Am. 
Acad. II. 5: 327. 1854. 
Succulent parasitic plants. Stem simple, scaly, mostly buried in the sand, at the summit 
expanded into a peltate, shallowly cyathiform disk bearing the ebracteate flowers. Sepals 
6-10, distinct to the base, linear-filiform, plumose, as long as the corolla. Corolla tubular or 
nearly so, mostly with 6 erect, plicate, emarginate lobes. Stamens 6-10 (mostly 8); filaments 
adnate to the corolla to near their upper end; anthers 2-celled, the sacs parallel, opening longi- 
tudinally. Ovary of 6-10 carpels, by false partitions 12-20-celled; style elongate, stout; 
stigma subcapitate, crenate on the margins. Ovules hemitropous, becoming anatropous. Fruit 
globose, more or less drupaceous; endocarp chartaceous, separating readily from the fleshy 
exocarp; stones 12-20, more often the latter number. 
Type species, Ammobroma Sonorae Torr. 
1. Ammobroma Sonorae Torr.; A. Gray, Mem. Am. 
Acad. IJ. 5: 327. 1854. 
An orange-colored fleshy plant; stem 2-6 dm. high, 1.5—-2.5 cm. thick, gradually tapering 
upwards; scales numerous, lanceolate, appressed, except under the inflorescence; inflorescence 
3-5 em. wide, with recurved margins; flowers of the depressed center with longer pedicels, 
those of the rim subsessile, making the whole inflorescence externally flat-topped; corolla 
about 8 mm. long, purple, plicate at the summit. 
Tyre LocaLity: Near the head of the Gulf of California, on hills around Adair Bay, Sonora, 
DistRrBuTIon: Parasitic, apparently on species of Prosopis, and on Franseria dumosa and 
Parosela Emoryi; northwestern Sonora, southwestern Arizona, and southeastern California. 
ILLUSTRATIONS: Ann. pies N.Y. 8: pl. 1; Abh. Nat. Ges. Halle 9: pl. 1; pl. 3, f. 3-7, 9-12, 16; 
E. & P. Nat. Pfl. 41: f. 7, A-F. 
