424 PROCEEDINGS OF THE AMERICAN ACADEMY. 
lanceolatis 14-21 cm. longis 4.5-8 cm. latis basi cordatis vel rarius 
runcatis in apicem acutum sensim angustatis apice (in foliis imma- 
turis) arista gracili 3-4 mm. longa munitis coriaceis glabris vel subtus 
in axillis nervorum barbatis pallide viridibus subnitidis valde reticu- 
lato-rugosis nervis supra impressis subtus prominentibus marginibus 
leviter incrassatis durisque sicut nervis marginalibus, petiolis 5-7 mm. 
longis crassis supra planis tomentosis vel glabratis, stipulis persistenti- 
bus linearibus 1.2—1.5 cm. longis, floribus femineis 2-4 folii in 
singula sessilibus, cupulae immaturae squamis late ovatis obtusis 
glabris vel minute furfuraceis, glandibus non visis. — Nugvo Laon : 
Sierra Madre, Monterey, Pringle, nos. 10,225, 10,226, 10,379, A well- 
marked species, nearest Q. nectandraefolia Liebmann. 
Mirabilis Pringlei, n. sp., caulibus herbaceis circa 1 m. altis ramosis, 
ramis dense glanduloso-puberulentibus, foliis late ovatis vel suborbi- 
culatis 7-10 cm. longis 5-9 em. latis integris cordatis acutis vel 
breviter acuminatis ciliolatis praeter nervos glanduloso-puberulentibus 
subtus sparse et minute pubescentibus pilis brevibus adpressis, m- 
florescentiae foliis parvis subsessilibus, inflorescentia divaricato-cymosa 
non congesta, cymis breviter pedunculatis, involucris unifloris campan- 
ulatis glandulosis ejus laciniis ovatis obtusis in anthesi tubam subae- 
quantibus, perianthiis pallide roseis 2.5—3 cm. longis cylindraceis bast 
paulum dilatatis et quam ovarium latioribus limbo angusto, stam- 
inibus 5 longe exsertis perianthii tubo duplo longioribus, anthocarpus » 
glabris tuberculatis circa 7 mm. altis 5 mm. latis pentagonis in angulis a 
costatis basi late truncatis. — GuekRERO: under limestone cliffs, Iguala 
Cafion, alt. 915 m., July 23, 1907, Pringle, no. 10,384. Near M. exserta 
Brandegee, from which it differs in its tuberculate, five-ribbed antho- 
carp and in the shape of its perianth which, at base, is broader than the 
ovary. From M. Jalapa and its immediate allies it differs, as does 
- M. exserta, in its long-exserted stamens and style and in its more ope? 
inflorescence. >; 
OXYBAPHUS GLABER Watson. The type material of this species CO 
sisted only of a portion of the panicle. The following amplified deserip- 
tion, drawn up largely from the specimen of Mr. Pringle’s cited below, 
may, therefore, be of service. 
Perennial ; stem stout, glabrous, 8 dm. high, simple below, branch- 
ing above, the lower internodes numerous and short (2 cm. Jong) ee 
leaves linear, 4-8 cm. long, 3-6 mm. wide, thick, glabrous; Pah 
large and open, its branches opposite and strictly glabrous ; involucres 
somewhat campanulate, 4-8 mm. high, about 1 cm. across " a 
mature, glabrous or minutely strigillose with short yellow rane 
slender glabrous pedicels 4-8 mm. long; flowers cleistogamous \” 
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