1914] Brandegee: Plantae Mexlcanae Purpusianae, VI 69 



basi et apice obtusae. Ovarium l-loculare; stylus brevis ramique 

 oblongi, obtusi. glabri ; ovula numerosissima, placentis in laminam 

 dorsifixam, reHexis. expansis. Baeea globosa, calycis limbo eoronata. 

 Semina angulata. tuberculata. Frutex ramosus, ramulis teretibus. 

 Folia opposita. Stioulae inter])etiolares, deltoideae. Flores in cymas 

 paucitloras, peduneulatas. axillares vel terminales, dispositi. 



Otocalyx chiapensis sp. nov. 



Caulibus juvenibus hirsutulis: foliis ovato-acuminatis. basi cuneatis, 

 margine integris, us(iue ad 5.5 cm. longis, 2.5 em. latis, utrinque fere 

 glabris ; petiolis 3-5 mm. longis, appresse hirsutis ; pedieellis ca. 5 mm. 

 longis ; calycis lobis 3 lanceolatis, ca. 3 mm. longis, altero foliaceo 

 laneeolato, ca. 8 mm. longo; coroUae coriaceae tubo ca. 1cm. longo, 

 limbi lobis rotundatis, crenatis. brevibus; bacca crasse coriacea, hirsuta. 



The placentae and fruit are peculiar for a Rubiaceous genus, 

 resembling those of .some species of Gesneraeeae. Collected on Cerro 

 del Boqueron. No. 7041. Type, Herb. Univ. Calif., No. 173047. 



PLOCANIOPHYLLON gen. nov. Rubiaeearum 



Calycis tubus oblongus: limbi lobi 4 lanceolati, persistentes. 

 Corolla tubo brevi : limbi patentis lobi 4, valvati. Stamina 4, iila- 

 mentis brevibus ; antherae basi affixae, lineari-oblongae. obtusae, 

 erectae. Ovarium 2-loculare ; stylus filif ormis, apice minute 2-lobus : 

 ovula in loculis numerosa. placentis affixa, conferta. Capsula ? parva, 

 oblonga, chartacea, 2-locularis, polysperma. Semina minuta, irregu- 

 laria, rugosa, exalata. Frutex glaber, ramulis teretibus. Folia opposita, 

 petiolata. membranacea, venulis creberrime lineolata. Stipulae parvae, 

 deeiduae. Flores in cymas paucifloras, axillares. dispositi, tlavi. 



Plocaniophyllon flavum sp. nov. 



Caulibus ramosis: foliis oblongo-lanceolatis, l)asi cuneatis, laminis 

 discoloribus. 4-5 cm. longis, 2-2.5 cm. latis; petiolis ca. 3 mm. longis: 

 pedunculis filiformibus, stramineis, 2.5-3.5 cm. longis; pedieellis 1-3 

 mm. longis ; corolla 2.5 mm. longa, lobis explanatis, ca. 4 mm. longis. 

 anguste oblongis. quam staminibus longioribus : fructu ca. G mm. 

 longo, lenticellis lineolato. 



The fruit of the specimens is not mature enougli 1o show its 

 dehiscence. It may be that of Hoff)nannia. The leaves are striolate in 

 the manner of those of Sommera. Collected in a barranca near Finca 

 Mexiquito. growing on wet roeks. No. 701i). Type, Herb. Fniv. 

 Calif., No. 173077. 



