Taxonomic history:
   1753: Linnaeus described this species as Lycopodium linifolium on p. 1100 of Species Plantarum.
    today: The current name for this species is Huperzia linifolia (L.) Trevis.

original Latin diagnosis
Lycopodium foliis alternis remotis lanceolatis, floribus axillaribus.

English translation
Lycopodium with leaves alternate, at a distance (from other leaves), [and] lanceolate;[and] with flowers axillary.

English translation with commentary

Lycopodium	Lycopodium
with leaves	foliis - ablative plural of 2nd declension neuter noun folium, -i
alternate,	alternis - ablative plural neuter of group A adjective alternus, -a, -um; modifies foliis
at a distance (from each other),	remotis - ablative plural neuter of group A adjective remotus, -a, -um; modifies foliis
[and]	[added for smoother reading]
lanceolate;	lanceolatis - ablative plural neuter of group A adjective lanceolatus, -a, -um; modifies foliis
[and]	[added for smoother reading]
with flowers	floribus - ablative plural of third declension masculine noun flos, floris
axillary.	axillaribus - ablative plural masculine of group B adjective axillaris, -is, -e; modifies floribus