MR. G. BENTHAM ON GRAMINE X. 31 
Subtribus 3. Arundinezg. Rhachilla sub glumis florentibus longe pilosa. 
Subtribus 4. Sesleriez. Inflorescentia spiciformis v. capituliformis, basi 
glumis vacuis v. spicis sterilibus sepius stipata. Stylus v. rami sepius 
longi tenues. 
Subtribus 5. Eragrostexw. Glume florentes trinerves. o Cetera normalia. 
Subtribus 6. Melicez. Glume florentes tri- v. plurinerves, superiores 
due v. plures vacue, semet involventes. 
Subtribus 7. Centothecex. Folia plana, lanceolata v. ovata, inter venas 
transverse venulosa. Glume florentes quinque- v. plurinerves. 
Subtribus 8. Eufestucew. Glume florentes quinque- v. plurinerves. 
Cetera normalia. 
Tribus xiii. Hordeeze. Spicule uni- v. pluriflorze, ad dentes seu excava- 
tiones rhacheos spice sinplicis sessiles. 
Subtribus 1. Triticez. Spicule ad nodos solitarie, tri- v. pluriflore, 
rarius biflore. 
Subtribus 2. Lepturez. Spicule ad nodos solitarie, uni- v. biflore. Spica 
tenuis, —— 
Subtribus 3. Elymes. Spicule ad nodos gemina v. plures collaterales. 
Tribus xiv. Bambuse . Gramina elata, sæpius basi saltem lignosa. 
Folia plana, szpissime cum vagina articulata. Spicule uni- v. pluri- 
flore. Lodicule sepius 3. Stamina 3, 4, v. plura. 
Subtribus 1. Arundinariez. Stamina 3. Palea bicarinata. Pericarpium 
tenue, semini adnatum. 
Subtribus 2. Eubambusez. Stamina. Palea bicarinata. Pericarpium 
tenue, semini adnatum. 
Subtribus 3. Dendrocalamex. Stamina 6. Palea bicarinata. Peri- 
carpium crustaceum v. carnosum, a semine liberum. 
Subtribus 4. Melocannew. Stamina 6 v. plura. Palea 0 nisi glumis 
simillima. Pericarpium crustaceum v. carnosum, a semine liberum. 
I now proceed to a more detailed revision of the several tribes, 
subtribes, and genera, in the order in which I have worked them 
up for the forthcoming part of our ‘ Genera Plantarum,’ to which 
I must refer for the technical characters and references, as well 
as for the synoptical clavis of the genera. 
Series A. PANICACE. 
This first main division of Graminew is very fairly defined by 
the combination of two characters—the articulation of the pedicel 
below the spikelet or cluster of spikelets, and the single fertile 
flower apparently terminal, with or without a single male or 
sterile one below it. Where either of these two characters fails, 
the plant should be referred to Poacere. 
The articulation of the pedicel is usually immediately below 
E2 
