The combination of rather thin leaves (from which the name is derived), caudate, 
glabrous, and domatia hairs dense and erect to parallel to leaf surface, keep this species distinct 
from others in the area. Perhaps morphologically the closest species to C. leptophyllum is C. 
ampullaceum, which has thick leaves with pubescent lower surface, and domatia with sparse 
hairs mainly parallel to leaf surface. 
Cinnamomum longipes (I. M. Johnston) Kostermans, Reinwardtia 6: 21. 1961. 
Phoebe longipes 1. M. Johnston, Contr. Gray Herb. 70: 69. 1924. Type. Mexico. Hidalgo: 
Acaxochitlan, Barranca Trinidad, below Honey Station, 6 May 1904, Pringle 8829 (holotype, 
GHI:; isotypes, F!, LL!, MICH!, MO!, US!). 
Trees (?) up to 6 m tall; twigs ridged to winged from petiole insertions, glabrous or 
glabrescent, hairs ca. 0.2 mm long, straight, appressed; petiole (9.5) 12.5 - 22.5 (25) mm long, 
(0.5) 0.9 - 1.3 (1.5) mm wide, glabrous; leaf blade (4.5) 7.5 - 16 (22.5) cm long, (1) 2 - 4 (5.5) 
cm wide, lanceolate or, few times, elliptic, apex acuminate to long acuminate, base acute or 
obtuse, glabrous on both sides, sparsely pubescent below when young, hairs 0.2 - 0.3 mm long, 
straight, appressed, triplinerved or subtriplinerved, midvein slightly depressed above, glabrous, 
raised below, glabrous or sparsely pubescent, secondary veins (5) 6 -7 (8) pairs, marked above, 
slightly raised below, glabrous, tertiary veins flat above, slightly raised below, glabrous, primary 
domatia present, only at axils of lower most pair of secondaries, frequently only one or none, 
secondary domatia absent; inflorescence (3) 5 - 10 (13.5) cm long, axillary to leaves, or 
119 
