310 MESSRS. W. WEST AND G. S. WEST ON 
Kans. Seattle, Wash. Sisson, Calif. (H. J. no. 403). Talla- 
hassee, Florida. 
The description of this plant given by Wolle (J. c.) is very 
good so far as it goes, but he has entirely omitted to mention 
the surface markings situated slightly above the middle of the 
semicells. We have seen this species from many parts of the 
United States, and its characters are fairly constant; the semi- 
cells are subrectangular, with faintly retuse sides which gently 
converge towards the straight apex, the superior angles being 
more rounded than the inferior ones. The three large hemi- 
spherical granules at each superior angle, the three within each 
of these angles, and the three just within the apex are quite 
constant in all the specimens we have examined. 
Across the upper part of the semicells there are from 5 to 7 
large granules, more depressed than those at the superior angles 
and arranged in two or three transverse series, this arrangement 
being variable even on the two halves of the same cell. Sur- 
rounding these central granules are hexagons of rather con- 
spicuous scrobiculations, the latter often extending among the 
marginal granules. The granules at the inferior angles are 
smaller than those on the other parts of the semicell ; there are 
usually two on the margin and two or three within, but more 
rarely specimens are met with which possess only one on the 
margin and one within. 
Fig. 5 d (which is from a drawing by Johnson) has 4 rather 
different arrangement of the surface granules, and the middle 
one of the three within the apex is situated rather below the 
other two. 
118. Cosmartum sunBsPECIOSUM, JVordst. in Ofvers. K. Vet.- 
Akad. Forh. 1875, no. 6, p. 22, t. 6. f. 13. 
Long. 42 p; lat. 32 u; lat. isthm. 11 p; crass. 21 p. 
Hab. Wake Forest, N.C. (H. J. no. 522). " 
This was recorded by Johnson (Bull. Torr. Bot. Club, xui 
1895, no. 7, p. 293) as C. costatum, Nordst.; his drawing, hor- 
ever, is identical in all respects with typical forms of C. 
speciosum. 
. 6. 
119. C. MONILIFORME, Ralfs, Brit. Desm. p. 107, t. 17. f 
—Tessarthonia moniliformis, Turp. 
Forma PANDURIFORMIS, Heimerl, in Verh. 
Ges. Wien, 1891, p. 598, t. 5. f. 11. 
d. k.k. zool-bot 
