44 New Species of South American Plants 



Pistillate Flowers. — Calyx 3 mm. long, the sepals obovate, 

 acute. Disk much like that of the staminate flower. Petals 

 not apparent. Ovary globoidal, densely gray-pilose. Styles 

 5, distinct, elongated, tortuous, entire, pilose, the stigma capi- 

 tate. Fruit 4 mm. long, broadly ovoid with rounded top, 

 lightly lobed. 



"A shrub, to 3 or 4 feet. Rare in dry forest below 500 feet. 

 Collected in an open water course 6 miles north of Bonda, 

 about 100 feet altitude, November x, and from Masinga 250 

 feet, July 7." (Herbert H. Smith, Colombia, No. 1467.) 

 Croton (§ Lasiogyne) cienagensis. 



Finely, closely and softly stellate-puberulent. Branchlets 

 slender, terete, recurved. Stipules minute, setaceous, caducous. 

 Petioles 6 to 8 mm. long, slender, the glands not obvious. Blades 

 6 to 8 cm. long, 3 to 6 cm. broad, ovate with cordate base, the 

 sinus acute and closed, the lobes broad and rounded, the summit 

 very abruptly acuminate and acute, the margin entire. Leaf 

 thin, brownish above, gray beneath, softly tomentose, the 

 venation slightly prominent beneath, the secondaries 6 or 7 on 

 a side, the lowest pair from the' summit of the petiole, falcate- 

 ascending, obscurely connecting and obscurely connected by 

 few tertiaries. Spike terminal, very loosely flowered, pistillate 

 below, staminate above, the bractlets of the pistillate very 

 small, brown, setaceous, of the staminate ovate, gray-green, 

 very small. Pistillate flowers solitary, sessile, staminate 2 or 

 3 together, on filiform pedicels rather longer than the flowers. 



Staminate Flowers. — Sepals 2 mm. long, ovate, acutish, 

 with a strong green midrib. Petals nearly as long, obovate 

 with narrow base. Torus pilose, the disk not apparent. Sta- 

 mens about 20, the filaments a little longer than the sepals, the 

 anthers large. 



Pistillate Flowers. — Calyx-lobes 1.5 mm. long, narrow, 

 yellow at the summit. Glands of the disk obscure, adnate to 

 the base of the calyx. Petals none. Ovary globose, gray- 

 hairy. Styles explanate, distinct, entire, the stigma small, 

 involute. Fruit not seen. 



"A tree or large shrub, to 15 feet of very peculiar appearance, 

 due to the dark-green velvety foliage. Moderately common 

 in scrubby forest-plains, 5 miles east of Cienaga, September 1 1 , 

 Not observed elsewhere." (Herbert H. Smith, Colombia, No. 

 368.) 

 Croton (§ Lasiogyne) obtusus. 



Stems, petioles, inflorescence and lower leaf-surfaces densely 

 and softly tomentose and light-gray or whitish, the upper leaf- 

 surfaces deep-green and sparsely stellate-dotted, more or less 



