I Vdl .\ I. I'.>2I ) IKA.N/STKPIIAM. SPKCIKS IIICATICA lilM /'/(/(/iorhilll . 



SIl^. l'la((i(K'lnla sacraiiKMiti St. ii. sp. 



Dioica major rigida, flavo-rufesccns, apicibus virescentibus, 

 iii (ortice laxc caespitans. Caulis a(d .5 cni. longus, sub flore inno- 

 \aliis. vix aliter ramosus. Folia caulina opposita, recte patula, 

 conligua, paruni concava, in plano ovalo-trigona (1,.') mni. longa, 

 inedio .'),2r) mni. lata) asymmetrica. margine siipero e basi late 

 rolundata longe arcualo, regulariter denseque spinuloso, spinis 

 l)reviusculis, marginc infero stricto, inferne nudo, superne remote 

 minuteque dcntato, apicc obtusa, similiter armata. Cellulse superse 

 27 X 27 II., trigonis majusculis, basales 27 x 72 ji, parietibus 

 trabeculatis. Perianthia clavata, 4 mm. longa, ore truncato den- 

 seque spinoso. Folia jloralia intima caulinis simillima, validius 

 spinosa. Andraecia desunt. 



Hab. Ecuador (Allioni legit). 



321. Plac(ioehila subnuda St. n. sp. 



Sterilis maxima rigida, pallide virens, in cortice laxe intricata 

 lateque expansa. Caulis ad 17 cm. longus, parum longeque ramo- 

 sus, ramis 1 cm. longis, simplicibus vel furcatis. Folia caulina 

 maxima, imbricata oblique patula, canaliculatim concava, in 

 plano late trigona, (5,5 mm. longa, supra basin 5,26 mm. lata) 

 asymmetrica, margine supero e basi rotundata stricto, superne 

 remote minuteque dentato, marginc infero folii stricto nudo, 

 apice truncata, 1 mm. lata, quadridentata, basi utrinque longe 

 decurrentia nuda. Cellulse supera" 18 x 27//., trigonis parvis, 

 medice 36 x 45//, basales 27 x 108/?, Irigonis nuUis. 



Hab. Boliuia (Buchtien legit). 



325. Placjiochila suhdentieulata (Mont). St. comb. nov. 

 Syn: Jungermannia subdenticulata. Mont. Ann. sc. nat. 1856, p. 349. 



Sterilis mcdiocris gracillima, rigida, rufobruunea in cortice pulvi- 

 iiatim ca>spitans. Ccuilis ad 25 mm. longus, simplex, flagellis sparsis 

 1 adiacantibus, minutifoliis. Folia caulinaTemoiiuscwla, cauli a latere 

 a[)pressa, valde concava, in plano reniformia (1,17 mm. longa, 

 1,33 mm. lata) asymmetrica, margine.su/jpromaxime ampliato se- 

 mirotundo, remote minuteque dentato vel angulato, margine infero 

 arcuato, nudo, apice truncata 0,5 mm. lata, angulis parvo dente 

 armatis, brevissime basi inserta, antice breviter decurrentia. 

 CelluLr supersc 18 x 18//, basales 18 x 36//, parietibus crassis. 



Hab. Pcruvia (Weddel legit). 



222 



