phytotaxa - Magnolia Press

own tomentose, sparsely to densely covered with long, straight or sinuous, briefly swollen-based,
diagonally or vertically oriented spines, these flattened or triangular in cross-section, whitish-brown
proximally, black or brown distally, with tomentose margins (rarely without spines), or peduncular bracts
broad, the surfaces ridged, brown tomentose, sparsely to densely covered with short, recurved, markedly
swollen-based, diagonally oriented spines, these triangular in cross-section, whitish-brown proximally, brown
distally, with tomentose margins (rarely without spines), or peduncular bracts narrow, elongate, ribbed,
scarcely brown tomentose, without spines (rarely with few spines), or peduncular bracts broad, ridged,
densely covered with short, straight, swollen-based, vertically oriented spines, these terete, whitish-brown
proximally, brown distally, without tomentum, or peduncular bracts broad, ribbed, densely brown tomentose,
without spines (very rarely with a few spines), or; peduncular bracts broad, ribbed or ridged, densely covered
with felty, reddish-brown tomentum, sparsely covered with short, scarcely swollen-based, diagonally
oriented, flattened spines, whitish-brown proximally, brown distally, with tomentose margins, or peduncular
bracts broad, ribbed with several more prominent, lighter colored ribs, brown, scarcely or not tomentose,
without spines (rarely with a few spines), or peduncular bracts narrow, ribbed, densely whitish-brown
tomentose, not spiny, or peduncular bracts broad, the surfaces ribbed or ridged, brown tomentose or glabrous,
sparsely to moderately covered with short, straight or sinuous, briefly swollen-based, diagonally or vertically
oriented spines, these flattened or triangular in cross-section, whitish-brown proximally, black or brown
distally, with tomentose margins, or peduncular bracts broad, the surfaces deeply ridged, dark brown
tomentose, sparsely covered with long, straight or sinuous spines, the bases scarcely swollen but running
directly into the ridges of the bract and lying flat against the bract surface, flattened in cross-section, brown
proximally and distally, with tomentose margins; rachillae brown tomentose initially, or rachillae glabrous or
scarcely tomentose initially; stamens five to seven, or stamens eight to 12; fruit surfaces uneven with
numerous, subepidermal, short, often branching (Y-shaped) fibers, or fruit surfaces smooth, without any
apparent subepidermal fibers, or fruit surfaces uneven with numerous, subepidermal, long, branching fibers,
or fruit surfaces bumpy from numerous, subepidermal, short, oblique fibers; fruiting corollas less than one
quarter as long as fruits, or fruiting corollas to half as long as fruits; fruiting corollas splitting irregularly into
3 lobes, the lobes often splitting again, or fruiting corollas not or scarcely splitting, tending to remain cupular;
endocarps globose to obovoid with rounded or slightly peaked apices, the pores lateral, or endocarps narrowly
ellipsoid with rounded apices, the pores lateral, or endocarps broadly obovoid with flattened apices, the pores
lateral on or near flattened apices, or endocarps ovoid to obovoid with prominent, peaked apices, the pores
lateral.
Key to the species of Desmoncus
1 Mexico and Central America ...................................................................................................................................... 2
- South America, Trinidad and Tobago, and the Lesser Antilles .................................................................................. 10
2 Pinnae with long, filiform apices; cirri absent, the rachis terminating beyond the distalmost, opposite pair of pinnae
in a