928 BULLETIN DE L'HERBIER BOISSIER (2e sm.). 1905 —— Plagiochila. 
lata, in plano late ovato-trigona, basi amplissima, apice ^4-plo angustiora, 
asymmetrica, margine antico inferne nudo stricto superne leviter arcuato 
bidentato, postico e basi semicirculari et maxime ventricosa bene arcuato 
regulariter dentato (ipsa basi nudo) dentibus ad 30 validis approximatis 
recle patulis, e lata basi breviter acuminatis versus apicem validioribus, 
inferne longioribus spiniformibus hamatis, apice ipso obtusato valide 
3-& dentato. Cellule apicales 36 v. trigonis maximis truncatis, basales 
36 7x 72 y, parietibus grosse trabeculatis, trabeeulis poro lato interruptis. 
Folia floralia caulinis majora, late rotundato-trigona, similiter armata. 
Perianthia magna, 8 mm. longa longe exserta, oblongo-obconica, ore 
truncato irregulariter spinoso-ciliato, spinis brevibus flexuosis vel hamatis 
varieque patulis; ala antica angustissima nuda vel nnlla. 
Hab. Andes quwitenses (Spruce), Nova Granada (Lindig), Columbia 
(Wallis). 
740. Plagiochila ovata L. et G. Hep. Mex. p. 165. 
Dioica major fusco-brunnea rigidula. Caulis ad 12 cm. longus parum 
longeque ramosus, validus fuscus et tenax. Folia caulina plus 3 mm. 
longa, parum imbricata, (in sicco decurvo-homomalla) oblique patula 
angulo 56? valde concava basi antica gibboso-inflata, utrinque breviter 
decurrentia, postice caulem late superantia vel replicata, in plano late 
rotundato-triangulata, basi amplissima apice angustiore rotundato, cireum- 
circa denliculata, dentibus 1-2 cellulas (rarius 2 cellulas) longis, validis 
creberrimis subzqualibus recte patulis, in margine antico remotiusculis 
subappressis. Cellulae apicales 27 i, trigonis majusculis aculis, basales 
27 »« 72 yw trigonis magnis aculis. Folia floralia caulinis simillima 
majora. Perianthia semiexserta late compresso-cylindrica, ore truncato 
denticulato, dentibus validioribus minus confertis minusque regula- 
ribus. 
Hab. Mexico (Liebman) Nova Granada (Wallis) Galapagos Insulee 
(Anderson). 
741. P. Jamesoni Tayl. J. of Bot. 1847 p. 340. 
Dioica magna el robusta olivacea. Caulis ad 12 cm. longus validus et 
tenax simplex vel pauciramosus, ramis longis simplicibus parum divergen- 
tibus. Folia caulina 3,6 mm. longa, imbricata recte patula, plano-disticha 
postice parum ampliata caulem tegentia vel erecto-conniventia vix decur- 
rentia rotundalo-triangulata, vix longiora quam lata, apice quam basis 
quintuplo angustiore denticulato ceterum integerrima, margine antico e 
basi stricta superne curvato. Folia ramulina multo angustiora ovato- 
iriangulata postice magis ampliata ceterum similia similiterque armata. 
578 
