360 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



Seemannia dioica 



(But one specimen seen.) Densely gray-pilose, except the 

 hriglit-green upper leaf-surfaces, Avhich are very sparingly stri- 

 gose with short, tapering hairs. Stems 2 dm. high, decunihent at 

 the base, angled and sulcate. Leaves opposite, the petioles 1 to 



2 cm. long, thin and weak, the blades 8 to 15 cm. long, 3 to 5 em. 

 broad, ovate with acuminate and acute summit and subrotund 

 or obtuse base, entire or ol)scurely serrulate, ciliate, very thin, 

 gray beneath, bright green above, the venation weak and incon- 

 spicuous, the secondaries 8 or 10 on a side, falcately ascending, 

 faintly reddish. Flowers solitary in the axils, the peduncles 

 very slender, 2 or 3 times as long as their petioles. Calyx-tube 

 turbinate, about 3 mm. long and nearly as broad, the recurved 

 lobes nearly twice as long, herbaceous, narrowly lanceolate and 

 acuminate and acute. Corolla rose-colored, gray-pilose, 2.5 cm. 

 long, the base slightly oblique and slightly gibbous, the tube 

 moderately ventricose above the middle, the teeth very short, 

 and green. Disk and pistil wanting. Stamens distinct, inserted 

 at the base of the corolla, the base of filaments calcarate, the 

 anthers extending to mouth of corolla, distinct. 



^ A single specimen. Eurrenabaque, 1,000 feet, M. Cardenas, 

 January 29, 1922 {rw. 2038). 



The anomaly of a unisexual plant in this family is difficult of 

 explanation. The plant is technically a Seemannia, by its cor- 

 olla teeth, and calcarate filaments, while its distinct but con- 

 nivent anthers are exceptional in this genus. It may be an ab- 

 normality, possibly a hybrid with an AcJiimenes. The fact that 

 only one specimen could be found is suggestive of an abnormal 

 origin. 



Corytholoma paludosa 



Closely and somewhat harshly tomentellate throughout. 

 Rhizome elongate, apparently not scaly. Stems to a meter high, 

 erect, slender, mostly simple, sparsely leafy, reddish, terete or 

 slightly angled or sulcate in places. Leaves opposite or ternate, 

 the lowest, if present, very small and rudimentary, but green ; 

 those of the middle portion of the stem sessile, to 8 cm. long and 



3 cm. Avide, obtuse at both ends, finely crenate, thick and some- 

 what fleshy, bright-green above, gray beneath, where the vena- 

 tion is very strong and more or less reddish, very strongly and 

 crookedly anastomosing. Floral leaves reduced to ovate, thick, 

 green, rigid bracts. Peduncles one-flowered, solitary in the axils 



