Lindley. 
KE. matum Schitr.,-of which the type collection is 
H. von Tuerckheim no. II 1868, December 1908, near 
Coban, Guatemala,—is a stout, tall plant with elongated 
branches subtended by large lorate leaves (up to 25 em. 
long and 2.cm. broad). The leaves of the primary stems 
are much larger than those of the branches. The flowers 
are much larger than those of the typical form and are 
borne in drooping racemes. ‘The bracts of the inflores- 
cence are about intermediate in size between those of 
Jacquin’s type and the form called H.imbricatum. The 
principal point of distinction, however, is the callus of 
the lip which is tridentate or trilobulate at its apex. ‘This 
character seems to us to be more diagnostic than the very 
variable vegetative differences, and even this character is 
approached in some specimens of the typical form and 
of the H.imbricatum variant. 
In spite of intergradation, however, we feel that there 
are three rather clearly marked forms based upon fairly 
consistent trends of grouped characters and we are con- 
vinced that these trends of grouped characters indicate an 
alliance composed of a species and two varieties, as fol- 
lows: 
Epidendrum ramosum Jacquin, Enum. P). Car- 
ib. (1760) 29 and Select. Stirp. Am. (1763) 221, t. 182. 
Tsochilus ramosum Sprengel, Syst. Veg. 8(1826) 734. 
Epidendrum rigidum Loddiges, Bot. Cab. 16 (1829) 
t. 1600, non Jacq. 
Epidendrum ramosum Jacq. var. lanceolatum Grise- 
bach, Fl. Brit. W. Ind. (1864) 618. 
Epidendrum ramosum Jacq. var. lancifolium Cog- 
niaux in Martius, FI. Bras. 8, pt. 5 (1898) 1783, 
sphaln. 
EK pidendrum flecicaule Schlechter in Beihefte Bot. 
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