Taxonomic history:
   1753: Linnaeus described this species as Piper umbellatum in Species Plantarum, 1st ed., p. 30.
   today: The current name for this species is Piper umbellatum L.

original Latin diagnosis
Piper foliis cordatis subrotundis acutis venosis, spicis umbellatis.

English translation
Piper with leaves blades cordate, nearly round in outline, acute, [and] with branched veins [and] with spikes umbellate.

English translation with commentary

Piper	Piper
with leaf blades	foliis - ablative plural of second declension neuter noun folium, -i
cordate,	cordatis - ablative plural neuter of group A adjective cordatus, -a, -um; modifies foliis
nearly round in cross section,	subrotundis - ablative plural neuter of group A adjective subrotundus, -a, -um; modifies foliis
acute,	acutis - ablative plural neuter of group A adjective acutus, -a, -um; modifies foliis
[and]	[added for smoother reading]
with branched veins	venosis - ablative plural neuter of group A adjective venosus, -a, -um); modifies foliis
[and]	[added for smoother reading]
with spikes	spicis - ablative plural of first declension feminine noun spica, -ae
umbellate.	umbellatis - ablative plural feminine of group A adjective umbellatus, -a, -um; modifies spicis