1894. ] Undescribed Plants from Guatemala. 7 
Piper Yzabalanum C. DC. in Donnell Smith Enum. PI. 
Guat. pars 1!1.—Foliis longiuscule petiolatis ample ovatis basi 
inzequali cordulatis apice breviter acute acuminatis utrinque 
glabris, nervo centrali paulo ultra medium nervos utrinque 7 
patule adscendentes mittente, petiolo glabro limbum usque 
vaginante, pedunculo quam petiolus adultus 4-plo breviore 
glabro, amento quam folium pluries breviore apice breviter 
mucronato, bractee spathulate vertice inflexo triangulari 
glabro pedicello lato basi inter baccas producto et hirtello, 
bacca glabra vertice pulposa.—-Ramuli glabri punctulis albis 
notati in sicco complanati 4-5" crassi, fasciculis collenchy- 
matosis in cortice distinctis intus fibris aliquot auctis, fascicu- 
lis intramedullaribus uniseriatis. Limbi 18 longi circiter 
12 lati in sicco membranacei pellucido-punctulati. Petioli 
circiter 4™ longi. Amenta matura ad 6.5 longa 5™™ crassa. 
Bacce subtetragone stylo destitute vertex pulposus in sicco 
ambitu subproductus. Stamina 4. Stigmata 3.—Boca del 
Polochic, Depart. Yzabal, alt. 200, April 1889, J. D. S., 
no, Iy7r2. 
Piper Heydei C. DC. (§V. PoroMorPHE C. DC.)—Foliis 
longe petiolatis adultis } supra limbi basin peltatis ovato- 
rotundatis amplis basi rotundatis repando-subcordatis apice 
breviter acute acuminatis supra glabris subtus presertim ad 
nervos nervulosque fulvescenti-hirsutis 14-plinerviis nervo 
centrali nervos adscendentes utrinque 3 supra limbi basin et 
ad ; longitudinis mittente ceteris nervis e petiolo divarican- 
tibus, petiolo medium usque vaginante dorso apicem versus 
parce hirsuto, amentis apice ramuli sat longi glabri circiter 
12-umbellatis longiuscule pedunculatis ipsis florentibus quam 
foliorum limbi pluries brevioribus, bractez pelta triangulari 
margine fulvescente hirsuta, antheris subglobosis, ovario 
glabro.—2" altum. Folia juvenilia haud peltata basi cordata. 
Limbi in sicco firmule membranacei subopaci pellucido-punc- 
tati 33 longi medioque lati. Petioli adulti circiter 16™ longi. 
Ramuli amentiferi glabri verisimiliter axillares 16 longi. 
Amentorum pedunculi 5 longi. Amenta ipsa adhuc juven- 
ilia inequilonga ad 9™ longa. Stamina 3 quorum 2 lateralia 
tertium posticum. Anthere filamentis circiter zquilonge. 
Ovarium ovatum apice attenuatum adhuc juvenile. —Species 
limbis subtus hirsutis, ramulis amentiferis multo longioribus 
et presertim floribus 3-staminalibus a P. peltato L. valde dis- 
crepans.—San Miguel Uspantan, alt. 7,000%, April 1892, 
Heyde & Lux, no. 3,461. 
