separated specifically from the extremely variable /. 
paniculatum. Although FE. parviflorum is a smaller and 
more delicate plant than the usual form of . panicula- 
tum, there does not appear to be any striking morpholog- 
ical character—either vegetative or floral—to separate it 
trom that species. The flowers of £7. parviflorum, how- 
ever, are much smaller than those of any of the £7. pan- 
iculatum examined or recorded, and accordingly it seems 
reasonable to recognize this weak and small-flowered 
plant as a named variety of 2. paniculatum. Its sepals 
are 5 mm. long, whereas those of J7. paniculatum range 
from 8.2-16 mm. in length. In addition, the variety has 
the base of the lip provided with a small trilobulate plate, 
whereas in £. paniculatum there are two calli which are 
either separate or joined. Although typically found in 
Peru, this small-flowered form occurs also in Ecuador. 
EKpidendrum gratiosum, of which I have seen a photo- 
graph and a drawing from the type specimen in the 
Reichenbach Herbarium, appears to be an exact coun- 
terpart of #2. parviflorum and was described from Ruiz 
& Pavon material. The flowers, as described, also corres- 
pond well with those of 27. parviflorum, and they are even 
said to have a trilobulate plate at the base of the lip, as 
shown in £7. parviflorum., 
Epidendrum gratiosum var. linearifolium, of which we 
have a photograph and a drawing of the material in the 
Reichenbach Herbarium which Cogniaux later made the 
varietal type, apparently differs from /. gratiosum only 
in having linear elongate leaves and sometimes a more 
branched panicle. ‘This combination is therefore synony- 
mous with #. parviflorum. However, in accordance with 
the Rules of Botanical Nomenclature, it is necessary, in 
naming this variety, to disregard the specific name, ‘‘par- 
viflorum,’” and to adopt the name “‘linearifolium” since 
it is the first varietal epithet to be used for this concept. 
{ 106 | 
