Family 3. LENNOACEAE 
By PER AXEL RYDBERG 
Parasitic herbs, wholly lacking chlorophyl. Stem fleshy. Leaves reduced 
to short scales. Flowers perfect, cymosely paniculate, spicate, or inserted on 
a peltate disk. Sepals 5-10, linear, distinct or nearly so. Corolla gamopetal- 
ous, tubular or narrowly funnelform or salverform, 5—8-lobed. Stamens 5-10, 
alternate with the corolla lobes; filaments adnate to the corolla nearly through- 
out; anthers 2-celled, introrse, dehiscent by longitudinal slits. Gynoecium of 
6-14 wholly united carpels; ovary by dorsal false partitions divided into twice 
as many cells with one ovule in each; style simple; stigma subcapitate or peltate, 
crenate. Ovules anatropous, nearly horizontal. Fruit drupaceous-capsular, 
at last irregularly circumscissile; stones 12~28, 1-seeded. Seeds with endo- 
sperm; embryo globular, without distinction between caulicle and cotyledons. 
Stamens 8, in 2 series; anther-sacs divergent below; corolla more or less salver- 
shaped; flowers cymose-thyrsoid: 1. Lennoa. 
Stamens in a single series; anther-sacs parallel; corolla tubular or funnelform; 
flowers not cymose-thyrsoid. 
Flowers spicate; corolla narrowly funnelform with ascending lobes; sepals 
shorter than the corolla, puberulent. 2. PHOLISMA. 
Flowers on a peltate disk; corolla tubular with erect lobes; sepals longer than 
the corolla, plumose. 3. AMMOBROMA. 
1. LENNOA Lex.; Llave & Lex. Nov. Veg. Deser. 1: 7. 1824. 
Corallophyllum H.B.K. Nov. Gen. & Sp. 7: 275. 1825. 
Succulent parasitic plants. Stem simple, or branched either at the base or above, covered 
with more or less toothed scales. Inflorescence cymose-thyrsoid; flowers subtended by bracts. 
Sepals 5-8, distinct to near the base, pubescent or puberulent, linear. Corolla more or less 
salver-shaped; limb plicate, with 8 emarginate lobes; tube ventricose at the base and splitting 
open over the enlarging fruit. Stamens 8, in two series; filaments linear, adnate to the corolla 
for most of their length; anthers 2-celled, the sacs elliptic, coherent at the apex, divergent 
below, dehiscent longitudinally. Ovary of 8 carpels, by false partitions 16-celled; ovules 
horizontal, anatropous. Fruit more or less drupaceous, with about 16 stones. 
Type species, Lennoa madreporoides Lex. 
Corolla 4-6 mm. long; limb ascending, 2.5—-3 mm. broad; plant often branched 
at the base. 1. L. caeruléa. 
Corolla 6-8 mm. long; limb reflexed in fruit, 4-6 mm. broad; plant simple 
below, branched above. 2. L. madreporoides. 
1. Lennoa caerulea (H.B.K.) Fourn. Bull. Soc. Bot. Fr. 16:11. 1869. 
Corallophyllum caeruleam H.B.K. Nov. Gen. & Sp. 7: 276. 1825. 
A succulent yellowish plant; stem 5-10 cm. high, often branched at the base; scales lanceo- 
late, glandular-puberulent; bracts oblong, acute, membranous; flowers sessile, scarcely longer 
than the bracts; sepals colored, linear, longer than the corolla, pulverulent-hirtellous; corolla 
pale-violet, 4-6 mm. long; limb 2.5-3 mm. broad, with 8 emarginate lobes. 
Typz Locauiry: Near the city of Mexico. 
DistRIBUTION: Parasitic on composites; Mexico, Pueblo, and Morelos. 
ILLUSTRATIONS: H.B.K. Nov. Gen. & Sp. fl. 660 bis; Abh. Nat. Ges. Halle 11: 91.2, f. 1,5, 6, 
8-11; pl. 3, f. 1, 2, 13; E. & P. Nat. Pal. 4: f. 7, G. 
2. Lennoa madreporoides Lex.; Llave & Lex. Nov. Veg. 
Deser. 1:7. 1824. 
Lennoa madrepoides Steud. Nom. Bot. ed. 2.2: 22. 1841. 
A succulent yellowish or brownish plant; stem 5-15 cm. high, usually simple up to the 
inflorescence; scales elliptic or lanceolate, dentate, acute; flowers sessile, longer than the linear 
Vo.ume 29, Part 1, 1914] 19 
