VOL. II. ] West American Plants. 81 
midst of the capsule, whose valves at first separate by a slight parting of their 
edges at the natural suture, ultimately breaking away irregularly and piecemeal 
from the placentiferous central axis. In Diplacus there is no such axis. The firm 
valves parting at first only by the upper suture, lie open like a boat-shaped follicle, 
each bearing its own distinct placenta, and that with a broad thin spreading margin 
which almost conceals the seeds. That this pod, at first boat-shaped by a partial 
dehiscence, is held in this shape by a tubercular enlargement of the base of the 
style, I have stated in the earlier paper cited in the foot note. * * * Diplacus 
has a completely revolute vernation, the young leaves in all Mimuli are more or 
less distinctly conduplicate, never revolute. * * * Inthe Supplement to the 
Synoptical Flora he [Dr. Gray] says of the various ‘subgenera’ of Jfimulus : 
‘Diplacus is placed first as having the best claims to generic distinction.’” 
There are in this sentence quoted from Dr. Gray, just two more 
words, which should not have been omitted as they distinctly modify 
its meaning. 
Professor Greene in his anxiety to strengthen his position not 
only contradicts the published observations of Dr. Gray,* Dr. Wat- 
son,t and of the writer,{ but conveniently forgets his own pub- 
lished notes to the same effect.§ 
The single species Mfimulus glutinosus (Nutt.) now labors under 
the following synonyms: D. /atifolius, leptanthus, longiflorus, and 
puniceus Nuttall; D. stellatus Kell.; D. arachnoideus, linearis, 
grandiflorus and parviflorus Greene; besides Mimulus aurantiacus 
Benth., etc. 
That the author is far from careful in his statements, a few extracts 
from his own writings will serve to show. In the paper quoted 
above he says that he had stated in an earlier paper (Bull. Cal. 
-Acad., i, 94 and 96), that the ‘‘pod” of Diplacus was held in boat- 
shape by a tubercular enlargement of the base of the style. Not 
only did he fail to make such a statement in the place cited, but in 
subsequent papers he uses the presence or absence of this inconstant 
* Supp. Syn. FI., 450. 
t  Mimulus (Eumimulus) deflexus, * “ * The placenta splits at the apex.” 
_ This is apparently the same as Mr. Greene’s (Drew in ‘herb.) Eunanus pulchellus 
_ published more than a year later. 
{Proc. Cal. Acad., ser. 2, i, 261. 
§ As Mimulus rubellus diverges from the other Mimuli by separated placentz, so 
EBunanus Breweri is aberrant from its congeners in having them firmly united below 
the middle,” Bull. Cal. Acad., i, 102. 
