138 MISSOURI BOTANICAL GARDEN. 
subtended by a spathe, and the labellum only slightly 
adnate to the column — whereas in the greater part of the 
genus it is attached much further up this member. The 
trilobed labellum, with the lateral lobes longer than broad 
and the median lobe broadened, marks it as belonging to 
the group Hymenochila of Lindley. 
Though one of the plainer species, it is worthy of culti- 
vation, and succeeds well with ordinary treatment. The 
appearance of its flowers is well shown in the appended 
colored plate, which is reproduced from a water color 
sketch by Miss Grace E. Johnson. 
In February, 1896, the Garden received from the Mexi- 
can Plant Company, of Maravatio, an orchid which bloomed 
in April of the same year and then proved to be the true 
Epidendrum venosum of Lindley.* In this species the claw 
of the 3-parted labellum is adnate to the basal half of the 
column, and the raceme of flowers is terminal on the pseudo- 
bulb stems,— characters which place it in Lindley’s section 
Aulizeum. The following description, drawn from the 
living specimen by Mr. C. H. Thompson, and the accom- 
panying halftone from a photograph, show how different 
this Mexican species is from that which has passed for it in 
Florida : — 
The stem proper is cylindrical, 4-6 mm. in diameter and almost en- 
tirely enclosed by the close-fitting thin papery leaf scales. The pseudo- 
bulbs are about 3.5-4 cm. long, slightly compressed ovoid in the flower- 
ing ones to slightly compressed fusiform in some of the older and sterile 
ones — the two diameters ranging between 9X 12 mm. in the latter and 
18 X 28 mm. in the former, measured at their broadest points. 
The fertile pseudo-bulb is crowned by three linear-lanceolate leaves 
about 13 cm. long by 15-18 mm. broad in the middle. From a straw- 
colored membranaceous sheath in the axil of the uppermost leaf rises 
the five-flowered raceme. The sheath is about 2 cm. long. Each 
flower is subtended by a minute clasping acute pointed triangular pa- 
leaceous bract about 3 mm. long. The two-ranked one-sided raceme 
is 11 cm. long. Peduncles about 12 mm. long and equaling the 
* Lindley, Genera and species of Ochidaceous Plants. p. 99. 1830-40; 
Folia Orchidacea, 1, Epidendrum, p. 34. Jan. 1853, Bentham, Plantae 
Hartwegianae, p. 52. 1839, 
