Macbride — Notes on the Hydrophyllaceae 45 
NAMA ORIGANIFOLIUM HBK. In spite of the fact that Wooton & 
Standley in Contrib. U. S. Nat. Herb. xvi. 163 (1913) state that 
their Marilaunidium xylopodum “does not seem to be closely 
related to any of the perennial species’’ I am unable to separate 
it satisfactorily from Nama origanifolium. Havard’s specimen 
from the Guadalupe Mts. of far-western Texas upon which Wooton 
& Standley base their species agrees excellently with the detailed 
description and plate of HBK’s species in their Nov. Gen. & Spec. 
ili. 130, t. 218 (1818). The Mexican material I have seen of N. 
origanifolium is less strongly hispid than the Texan plant but the 
difference in this respect is very slight and in all probability repre- 
sents merely an individual variation. 
NaMA DICHOTOMUM (Ruiz & Pavon) Choisy, var. ANGUSTIFOLIUM 
Gray. Marilaunidium tenue Wooton & Standley, Contrib. U. 8S. 
Nat. Herb. xvi. 162 (1913) is not to be distinguished. The char- 
acters which the authors give as a means of distinguishing their 
plant are valueless as they exist in every degree in the var. angusti- 
poe 
AMA DICHOTOMUM (Ruiz & Pavon) Choisy, var. pueblense 
(Robins nson & Greenman), comb. nov. WN. pueblense Robinson & 
reenman, Proc. Am. Acad. xxxil. 39 (189 6). 
Brand, Pflanzenreich iv. 251. 150 (1913), reduced N. pueblense 
outright to true N. dichotomum. It appears, however, to merit 
varietal recognition. The seemingly thinner leaves are somewhat 
broader more distinctly contracted to a petiolar base and usually 
more evenly pubescent on both surfaces. The hispid pubescence 
of the lower leaf-surfaces of the typical form is confined largely to 
the veins while it is evenly distributed over the upper surface. 
Furthermore the vars. pueblense and angustifolium entirely replace 
true N. dichotomum north of South America. 
RoMANZOFFIA SuksporFi Greene, Pitt. v. 38 (1902). R. cali- 
fornica Greene, 1. c. 39. R. mendocina and R. spergulina Greene, 
l.c. 40,41. R. sitchensis Bong., var. grandiflora Heague & Schmidt, 
subvar. Greenet Brand, f. Bukidochs (Greene), Brand, Pflanzenreich 
iv. 251. 171 (1913). 
This seems to be a good species constantly distinct from R. 
sitchensis by virtue of the long corolla and bulbous base. Brand, 
l.c., maintained R. californica but misinterpreted R. Suksdorfiz. 
The type of the latter is more pubescent than the Californian 
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