134 



Herberta serrata, n. sp. at Unduavi (alt. 10,000 ft.), but only the 

 male plant. It belongs to the § Heteromallae, and agrees well 

 with the description and figure in Gottsche's work. The leaves 

 arc smaller than in most of its congeners (1.2X1.0"^^^) strongly 

 secund and accumbent, suborbicular, but with the whole antical 

 margin so strongly revolute that they seem almost dimidiate. 

 The rounded, plane, postical margin is closely spinuloso-dentate, 

 teeth about 20. Cells minute and opaque, thick-walled and sub- 

 equilateral, but near the axis in the lower half less minute and 

 twice as long as broad, 5 spikes medial and terminal, ovato- 

 fusiform ; bracts monandrous. 



Liebmann discovered this species on the volcano Orizaba, at 

 8 to 12,000 feet, or at nearly the same height as Rusby found it 

 in the Bolivian Andes. 



Plagiochila (§ Heteromall.e) frausa, Gottsch. van 



BOLIVIANA, n. van 



Dioica, ca^spitosa, rufo-flavens; caules i-2-pollicares, strict!, 

 ramos paucos alternos proferentes. Folia subimbricata, plus 

 minus decurvo-secunda, subtransversa, basi utrinque (antice 

 pr?ecipue) decurrente amplexantia, prselate semiovato-triangularia 

 (potius deltoidea) acuta, margine antico stricto, late (non autem 

 valide) recurva, unde folia canaliculata ab infero visa, integerrima 

 vel sub apice i-2-dentata; postico (basi longa Integra excepta) 

 valde rotundato spinuloso-dentata, dentibus omnibus sub 12, 

 brevibus peracutis; cellulae parva^, opaca^, trigonis auctae. — Folia 

 i,8x 1.5, cellute sV. 



Hab. Yungas Bolivicie, alt. 6.000 ped. (No. 3,048 p.p.) — P> 



deltoidia^ Lindng., e Nova Zelandia, huic persiniilis, folia habet 



majora, magis dimidiata, margine postico ab ipsa fere basi 



validius dentata. P, Bahiensis Lindng. caule flagellifero, foliis 



tosis, e basi decumbente suberectis, strictis et quasi vimineis, 

 subsimpHcibus, raro fasttgiato-ramosis, valde polyphyllis. Folia 



r 



I 



utroque margine apiceque rotundatis distat. In nostra, alii 

 rami interdum videntur exparte exfoliati, pro flagellis autem vix 

 habendi. P. frausa typica, Mexicana, folia habet paulo longiora, 

 magis argute dentata, alioquin omnino conformis est. I 



Plagiochila (§ Heteromallae) viminea, n. sp. 



Dioica, elata, flavo-viridis, caulibus 2-3-pollicaribus, caespi- 



f 



