1869.] On Pandanojrfiyllum and allied genera. 88 



oblongae, obtusiusculae v. acutiusculae, solitariae, v. passim binae. 

 Squamae arete imbricatae, emarcescente persistentes, sursum sensim 

 minores ; inferiores 3 — 4 vacuae, lanceolatae v. oblongo-lanceolatae, 

 obtuse carinatae, striatae, opacae, virides, margine membranacco 

 brunnescentes ; sequentes ecarinatae, nervosae, teneriores, naves- 

 cente-testaceae v. brunnescentes, nitentes, spiculam 6 floram andro- 

 gynam foventes. Flosculi omnes uni-squamulati, 3 exteriores masculi, 

 monandri ; 2 interiores ad valvulas reducti : flosc. intimus excentricus, 

 femineus. Squamulae nosculorum laterali compresso-navicuculares, in 

 carinis eroso-ciliolatae, medianae depressae. Antlierae exsertae. Ovari- 

 um sub-lagenaeforme, laeve ; stylus brevis ovario continuus, emar- 

 cescente persistens, trifidus, ramis elongatis inclusis. Acliaenia oblonga, 

 styli basi apiculata, obsolete bicarinata, pericarpio carnescente (in 

 sicco coriaceo) brunnescente asperulo, nucleo lapideo nigrescente. 



This is a very variable species, not only with regard to the leaves, 

 which are longer or shorter petioled, but also with reference to the 

 length of the culms, sometimes attaining nearly the length of the 

 leaves, sometimes reduced so as to let the spike appear almost sessile. 

 Sometimes these culms are furnished also with a few bracts. 



6. P. immersum, Thw. Enum. PI. Zeyl. 433. 



Hab. : Ceylon : Thwaites G. P. 3819. 



Rhizoma crassum, lignescens, radicosum. Folia trifarie-equitantia, 

 2 — 2J pedalia, pollice angustiora, anguste linearia, acuminata, basin 

 membranaceo-marginatum breviter vaginantem versus angustiora, 

 complicato-trinervia, laevia, supra nitida, subtus glaucesoentia et 

 opaca, marginibus costaque basin versus remote et minute serrulata 

 v. omnino laevia. Culmi pollicares v. breviores, bracteis sursum 

 majoribus spica ipsa solitaria, sublongioribus obtecti. Bracteae cul- 

 meae superiores involucrantes, membranceo-marginatae, lineares, acu- 

 minatae. Spica fructigera cerasi minimi magnitudine, densiuscula, 

 squamis late-ovatis acuminatis in sicco fuscescentibus striatis. Ach- 

 aenia ovata, incurvato-rostrata, ecarinata ; pericarpio carnosulo. 



V. Cephaloscirpus, Kuez. 

 Spicae glomerato-capitatae, multi-spiculatae. Squamae undique im- 

 bricatae, emarcescente persistentes, inferiorum nonnullae vacuae, reliquae 

 spiculigerae. Spicnlae 7 — 10 florae, squama propria longiores. 

 Flosculi omnes uni-squamulati, nunc 3 exteriores, nunc 3 alii mascuJs, 



