260 RECORD: STRUCTURE OF CERTAIN WOODS 
by the same author as Conocarpus erecta (Combretaceae), but au- 
thentic specimens of this species are wholly without this structure, 
as are all other representatives of the family that were examined. 
Wiesner (5, p. 997) states that in Olea europea L. the rays (under 
the lens) produce a fine wavy cross-striping on the tangential 
section. Specimens of the wood examined by the writer exhibit 
no tendency to “ripple marks,” and Miiller (Atlas der Holz- 
structur, 1888, pp. 88, 91) gives as one of the distinguishing fea- 
tures of this wood the irregularity in size of the rays. All of the 
foregoing woods are excluded from the table given below. 
The only representative of the Lythraceae included in the 
list is Physocalymma scaberrimum Pohl, variously known as Bra- 
zilian tulip-wood, rose wood, ‘‘pao de rosa,” “‘cego machada,” 
“grao de porco”’ and ‘‘sebastiao de arruda.”’ Writers all seem 
to be in agreement in referring this wood to the species mentioned, 
but the specimens examined by the writer, which are evidently 
the same as those described by Wiesner (5, p. 975), appear to belong 
to the Leguminosae. They certainly do not resemble other avail- 
able material of the Lythraceae. 
Another wood of which there is some doubt is Ferolia guya- 
nensis Aubl. (= Parinarium sp.) of the Rosaceae, mentioned by 
Von Hohnel (1, p. 43), who calls it ‘‘Ficatin- oder Kénigsholz.”’ 
According to Stone (Timbers of Commerce, 1904, p. 101) this spe- 
cies supplies the wood from Guiana commonly known as “‘ washiba”’ 
or bow-wood. Auth®ntic specimens of washiba and bow-wood, 
collected by the Forestry Officer of British Guiana are Tabebuia 
spp. The tier height in the latter is about 0.25 mm., while accord- 
ing to Von Héhnel the height of the “‘ Markstrahlstockwerke”’ in 
the wood of Ferolia is about 0.15 mm. If Von Hoéhnel’s measure- 
ment refers only to the height of the rays the discrepancy dis- 
appears, since this agrees closely with the writer’s observations. 
No other wood of the Rosaceae has been reported as having a 
tier-like structure. 
The satinwood, Chloroxylon. Swietenia DC., is listed with the 
Rutaceae (following Engler), rather than with the Meliaceae, be- 
cause the wood so closely resembles those of the Rutaceae and 
has so little in common with the others. No other representative 
of the Rutaceae has been found with storied structure, while 
various representatives of the Meliaceae exhibit a more or less 
