464 LENNOACE^E. Newberry a. 



cohering, leaving a central cell (if correctly understood). Inflorescence capitate. — 

 A single imperfectly known species. 



1. N. congesta, Torr. Glabrous, brownish : simple stems a span liigh, clothed 

 with loosely imbricated oval or oblong and obscurely erose scales ; the uppermost 

 forming large bracts to the capitate-crowded flowers. — Ann. Lye. New York, viii. 

 55 ; Benth. & Hook. Gen. PL ii. 606. Hemitomes congestum, Gray in Pacif. P. 

 Pep. vi. 81, t. 12 : description and figure faulty, and name inapplicable, therefore 

 changed. 



Southern part of Oregon, upper part of Des Chutes Valley, Newberry. Near California, and 

 probably occurring within its limits. It is very desirable to rediscover this little-known plant. 



Order LV. LENNOACE^J. 



Poot-parasitic fleshy herbs, scaly, destitute of green herbage, with the aspect of 

 Monotropece and OrobancJiacece, but nearer the former ; remarkable for having the • 

 parts of the flower almost always more than five and the cells of the ovary at least 

 doubled, these one-ovuled, the stamens adnate up to the very throat of the tubular 

 corolla (anthers on very short filaments, 2-celled and opening lengthwise), and the 

 fruit drupaceous. — Comprises three genera and not more than four species, of 

 Mexico and California. — Torr. in Ann. Lye. New York, viii. 51; Solms-Laubach in 

 Abhandl. Nat. Halle, xi., & DC. Prodr. xvii. 37 ; Benth. & Hook. Gen. PL ii. 621. 



1 . Pholisma. Flowers spicate. Sepals and short lobes of the corolla 6, rarely 5 : stamens as 

 many in a single series. 



2. Ammobroma. Flowers covering the upper surface of a dilated concave receptacle. Sepals 

 about 10, filiform and plumose. Lobes of the corolla and stamens 6 to 10. 



Lennoa, Llav. & Lex. (Corottophyllum, HBK.), has the parts of the flower in eight, and the 

 stamens in two series below the throat of the curved corolla. 



1. PHOLISMA, Nutt, 



Calyx of 6 (or rarely 5) linear sepals, shorter than the corolla, naked. Corolla 

 tubular, obscurely funnelform, withering-persistent ; the lobes as many as the sepals, 

 short and broad, undulate and plaited-imbricated in the bud. Stamens as many as 

 the lobes of the corolla and alternate with them, borne in the throat in a single 

 rank. Ovary and drupaceous (1) fruit 12- 20-celled, depressed-globose. Style 

 long : stigma 6 - 10-crenate-lobed. ->— A single species. 



1. P. arenarium, Nutt. Brownish fleshy herb, of simple stems, a span high, 

 puberulent, thick, clothed with small erect scales : spike at first capitate, at length 

 oblong, dense : flowers sessile, rather longer than the linear bracts (about 4 lines 

 long), purplish.— Hook. Ic. PL t. 626. 



Sandy soil and at the base of hills, near Monterey and San Diego, Douglas, Nuttall, &c. Para- 

 sitic on the roots of oaks ? 



2. AMMOBROMA, Torr. 



Calyx of mostly 10 filiform plumose-hairy sepals, equalling the usually 6-lobed 

 corolla ; this and the stamens and pistil nearly as in Pholisma. 



1. A. Sonorse, Torr. Root of thick tortuous fibres : stems simple, elongated, 

 beset with lanceolate acute mostly appressed scales, the summit dilated into a fun- 

 nelform receptacle, with recurved or spreading margins ; the whole cavity densely 

 lined with short-pedicelled flowers : corolla about 4 lines long : ovary about 20-celled. 

 — Ann. Lye. New York, viii. 51, t. 1. 



