424 PROCEEDINGS OF THE AMERICAN ACADEMY. 



lanceolatis 14-21 cm. longis 4.5-8 cm. latis basi cordatis vel rarius 

 truncatis 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, rloribus femineis 2-4 lulii in axilla 

 singula sessilibus, cupulae immaturae squamis late ovatis obtusis 

 glabris vel minute furfuraceis, glandibus non visis. — Nuevo Leon : 

 Sierra Madre, Monterey, Pringle, nos. 10,225, 10,226, 10,379. A well- 

 marked species, nearest Q. nectandraefolia Liebmann. 



Mirabilis Pringlei, n. sp., caulibus berbaceis circa 1 m. altis ramosis, 

 ramis dense glanduloso-puberulentibus, foliis late ovatis vel suborbi- 

 culatis 7-10 cm. longis 5-9 cm. latis integris cordatis acutis vel 

 breviter acuminatis ciliolatis praeter nervos glanduloso-puberulentibus 

 subtus sparse et minute pubescentibus pilis brevibus adpressis, in- 

 florescentiae foliis parvis subsessilibus, inrlorescentia divaricato-cymosa 

 non congesta, cymis breviter pedunculatis, involucris unifloris campan- 

 ula tis glandulosis ejus laciniis ovatis obtusis in antbesi tubam subae- 

 quantibus, periantbiis pallide roseis 2.5-3 cm. longis cylindi'aceis basi 

 paulum dilatatis et quam ovarium latioribus limbo angusto, stam- 

 inibus 5 longe exsertis periantbii tubo duplo longioribus, antbocarpiis 

 glabris tuberculatis circa 7 mm. altis 5 mm. latis pentagonis in angulis 

 costatis basi late truncatis. — Guerrero: under limestone cliffs, Iguala 

 Canon, 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 open 

 inflorescence. 



Oxybaphus glaber Watson. The type material of this species con- 

 sisted only of a portion of the panicle. The following amplified descrip- 

 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. long) ; 

 leaves linear, 4-8 cm. long, 3-6 mm. wide, thick, glabrous ; panicle 

 large and open, its branches opposite and strictly glabrous ; involucres 

 somewhat campanulate, 4-8 mm. high, about 1 cm. across when 

 mature, glabrous or minutely strigillose with short yellow hairs, on 

 slender glabrous pedicels 4-8 mm. long ; flowers cleistogamous (?), 



