March, 1900. Plants Utowan.e Millspaugh. 33 



cm., leaves chartaceous, glabrous, ovate-lanceolate 8-10x3.5-4.5 cm., 

 point rounded-blunt, principal veins 3, with basal pair of shorter 

 peduncles about 8 cm., aments about 4.5 cm. 



Peperomia crassiuscula Sp. now 



Root-stalk creeping, stems erect rooting at such of the lower 

 nodes as may be in juxtaposition with the soil, glabrous, thick and 

 succulent, columnar, appearing 8-winged when dry, branching vicari- 

 ously at the lower or upper nodes; leaves whorled in threes, thick, 

 smooth and juicy, nerves not evident either above or below, short 

 petioled, ovate, tapering to the petiole below and to a rounded cuneate 

 point above, 3x1.8 cm., shrinking into many irregular keel-like folds 

 when dry, margin sharp-cartilaginous. Aments thick, terminal densely 

 floral about 10 cm. long, peduncle 2.5 cm., rhachis glabrous with about 

 8 lines of deep pits, bracteoles oblong, peltate, the edges peltate; fruit 

 ovate, pointed above, laterally compressed, 1.2 x .1 mm., or with the 

 persistent apical stigma and peltate style 1.5 mm. long, ventral side 

 channeled below, forming an emarginate base. 



Growing from the bark of a fallen and decayed tree near the 

 cenote of Nohoch Chen, at Chichen Itza, Yucatan (1628). When 

 fresh the whole plant is lurid, thick and succulent. 



MORACEiE. 



DORSTENIA CONTRAYERVA HOUSTONIANA Bureau. 



Open woodlands (1623) and the walls of the Cenote Cafetal 

 (1631), Chichen Itza, Yucatan. No. 1623 has narrow sagittate leaves 

 9 x 4.5 cm., with rounded cordate-auriculate base, and small flower- 

 ing head 1.5 cm. in diameter; No. 1631 has broad hastate sharply 

 basal-lobed leaves 22x20 cm., flowering heads 3 cm. in diameter. 



Ficus longipes Miq. An. Mus. Bot. Lugd 3:298. Plate xxvi. 



One of the largest most umbrageous trees of the Yucatec penin- 

 sula, plentiful in the deep woods about Chichen Itza (1630), where it 

 is known as the "Alamo" by the Spaniards and as the "Copo" by the 

 Mayas. This 1630 is the species doubtfully referred to as rubiginosa 

 in Contrib. 1:14, and illustrated in plate I. 



URTICACE^E. 



Urtica urens Linn. Sp. PI. 984. 



Old fields and ditches at Walsingham, Bermuda (112). 



Urera elata (Sw.) Griseb. Fl. Br. W. I. 154. 



Urtica Sw. Urera sinuata Wedd. Hedgerows in the suburbs of 

 San Domingo city (774). Leaves 19x11 cm., widely sinuate. 



Adicea grandifolia (Linn.) Kuntze Rev. Gen. 622. 



Urtica Linn. Pilea grandis Wedd. Borders of rills in moist 

 fields near Port Antonio, Jamaica (913). 



Adicea microphylla (Linn.) Kuntze loc. cit. 



Pilea microphylla Liebm. P. mus cos a Lindl. Densely covering 



