2 CLXXiii. QEAMINE.B. (J. D. Hooker.) 



(1883), a work of remarkable completeness and accuracy, considering the cliaoti<j 

 condition in which the author found the Order ; and Hackel's admirable mnnogrnph 

 of the AndropogonetB in A. de CandoUe "Monogr. Phanerog." vol. vi. (1889), tbe 

 largest and most difficult Tribe of grasses. 



I have cited synonyms to a much greater extent in this than in any other Order 

 described in the "Flora of British India " (except the " Oyperace83 " by Clarke) 

 with the view of aiding the researches of future authors. Many of these synonyms 

 had never been fixed with any approach to exactness, and many were for the first 

 time identified during Mr. Jackson's and my labours on the " Index Kewensis." I 

 cannot expect that all will prove to have been satisfactorily reduced, and still less 

 that all have been brought to light. 



Keferriug to the classification of the Indian genera, I have been compelled to 

 diverge somewhat from Bentham's arrangement, and to abandon some of his Tribes 

 and Subtribes, in many cases following Haekel's more recent and well-considcrud 

 views. These divisions throughout the Order are of very unequal value, and are as 

 difficult of delimitation as of definition upon any fixed principles. They are, indeed, 

 in some cases arbitrary, and in others more or less artificial. In this matter, and in 

 the description or revision of some of the very difficult genera, I have derived great 

 aid from Dr. Stapf, Assistant in the Herbarium of the Royal Gardens, who lias 

 lately been instructed by the Director of Kew to study afcd name, the materials in that 

 Herbarium critically. As Dr. Stapf shares my views as to the wide ranges of the 

 species, and the undue multiplication of their synonyms, his labours may be expected 

 to yield far-reacliing results, taxonomic, morphological and geographical, and to 

 modify some of the conclusions arrived at in the following attempt to methodize 

 the Indian Graminece. As afix'cting tbe numbers and synonyms taken from" Wnl- 

 lich's List," I have to observe that for some of them I have had to depend on the 

 ticketed duplicates in Herb. Hook, and Benth., the types being wanting in the 

 Wallichian collection in the rooms of the Linnsean Society. 



Series A. Panlcaceae. Spikelets articulate on their pedicels, or 

 deciduous with them, 1-2-fld., upper fl. alone (if 2) fruiting. 



_ Exceptions. Spikelets inarticulate on their pedicels in Arundinella and Isaehm. 

 Spikelets articulate ou their pedicels, or with articulate pedicels occur in Poacece, in 

 Alopecurus, Cyathopus, PoVypogon, Fingerhuthia, and Lophathtrum. Upper 

 flower alone fertile in Tribe Phalaridece of Poacece, and in Tristachi,a. 



I. Baohis of infl. inarticulate, or subarticulate in Stenotapkrum. Fl. 

 gl. usually coriaceous or herbaceous. 



Tribe I. Panice^. Spikelets 2-fli., upper fl. bisexual, lower male or 

 neuter, rarely both fertile. (Spinifex is dicEcious.) 



* Spikelets articulate on their pedicels, except Isachne and Arundinella. 

 ■f Spikelets not involueellate by bristles. 



§ Spikelets not au-ned {gl. II and III healced or awned in Paw. Crus-galli). 



(See also TricholcEna and Arundinella.) 



Spikelets dorsally flattened, base not thickened ; gls. 3 



with very rarely a minute fourth (lowest) . . . 1. Paspalum. 



Spikelets oC Faspalum, but with a thickened bas.il callus . 2. Eriocbloa. 



Spikelets subglobose, panicled; gls. 4, I and II sepa- 

 rately deciduous, subequal ■ .... 3. Isachne. 



Spikelets panicled or spicate, gls. 4 (2 in P. subeglume) , 

 I and II very rarely subequal, II and III awned in 

 P. Orus-galU, IV rarely very shortly awned . . 4. Panioum. 



Spikelets of Panicum, but gl. IV. narrowed into a short, 



flattened stipes, or with 2 appendages near tbe base . 5. Iohnanthus 



Spikelets innumerable, very minute, hairy, densely 

 crowded in the capillary branches of a very large 

 pa"'":'* 6. Thtsanol^na. 



