Avena.] clxxiii. gramine^. (J. D. Hooker.) 275 



Having regard to the Indian species of Avena and Trisetum, T find it impossible 



to 



» separate them by characters of the fl. gls., there being all transitions in A, aspera 

 from the entire gl. of ^uena to the 2-aristate lateral lobes of Trisetum. There are 

 J'^^'^^^'^^ypes of ovary in both genera, the perfectly glabrous, and that with a 

 ^a hirsute or villous crown, characters which may suggest a better means of 

 . ^ ^gup^v^na. The following arrangement is provisional only. It is difficult 

 w aiagnose Avena from Bromus & Koeleria (</.r.). , 



^ J^^*- I- EuAVBNA. Annual. Spihelets pendulous; gl. I and II 5-7- 

 rn \i n ^^ ^' ^^^* awned or not ; awn cylindric, column 2-grooved, 



coDoiaally twisted. Ovary with a villous top—The determinations of the 

 Bpecies of this section are by Dr. Stapf. 



nr ♦ jlp^^yiiig glntnes glabrous or hairy at the base only, rachilla tenacious 

 or tardily disarticulating at the base. 



^ A. SATiVA, Unn. Sp. PL 79. 



to l2!oob ft ^^^^^^^^ India, from Bengal to the Indus ; and in the Himalaya up 



lent tl^^ ^^^' ^^.^ specimens of the common oat in Indian collections. These reprc- 

 •^^tuovaneties. 



Vtr 



^ihfi'rlV^T* ^^^^^^^^ of panicle spreading equally all round, flplkelet<i 2-fld., 



Bhotaii n '^J,^^®' ^" «"^ IV silkily hairy at the base, rachilla silkily villms.— 

 Beiuc£t«?^i \ ^'^^'"^ Himalaya, cult, at Yeumtong, alt. 12,000 ft., J. D. H. 

 (n, 24). -A^ffghanistan ; wild in cult, fields in the Kurrum Valley, Aitchison 



V ' 



wer'JnlT^'"^^''® • '''"anches of panicle more or less secund, spikelets 2-3.fl(l. the 

 . orienf.i;ro f ^' S'- "I with stiff hairs at the base, IV and rachilla glabrous. 



V, 

 lo' 



^i^l R«; ^h ^""PP^- 255 ; Boiss. Fl. Orient, v. 541. A. sterilis, Boyle Illustr. 

 CJorie." 1 '■ . ^"•:~^'-'^- India, Royle. Soane Valley, J. D. H. Mursbidabud, 



** 



a»artio„lJ-^"°S glomes hairy to and beyond the middle ; rachilla freely 



»Wlv 2 fi 1 ^ *!^ *^^ base, more tardily above it ; gl. HI and IV firm, 

 J" ''-ntl., scaberulona. 



ous. 



^•, '^' fatu 



'onnd oi» T "*' -^^""' '^i'- P^- 80 ; panicle branches equally spreading all 

 ^•fid. cloth J \'^'J ^^ subequal 9-nerved, III and IV firm scabemlons shortly 



clothed bel 



^ 58- p/ n ^^^^ ^»*^h Jong fulvous hairs. Host Oram. Austr. ii. *a 

 ^^nih^L ''\^^ 1629; JSnal. Bat. t. 2221; Kvapp Gram. Brttt t. 9d; 

 ^"^ (£T\ff- '■ 302. Snppi 256 ; Beichb. Ic. Fl Germ i. 103 ; Sleud. 

 %e^/^.230; iedeA. FlBoss.iv. 412; Boiss. FL Orief v. M3; 

 ^4. 51 aT'^^- ^''^- -116 ; Duthie Grass. N. W. Ind. 31, Fodd. Grass. N. 



^U£± 7"*'^^'"*' ^- ^och in Linneea, xxi. (1S48) 392^ A. stmlis, 

 ^'^t-S,' HfiL^''^^"^ ^•''- 22 (no;^ ii«».)? A. pilosa. M.B. Grweh. in 



^ -WA,, (1868) 78. 



e Pan 



i290^0ft ct^ ^•'^- Himalaya, and Westekn Tibet, in cult, fields ascending 

 ^•Afrio.' _^^.'??IM Himalaya. aU. flonn f f . flammte.-DisTRiB. Temp. Europe. 



T^« »Wt f!^' "*""'> ""'^^^ I'a'ry. Xeave^ flat, scabe.ulous ; sheaths smooth ; 

 St 1 in '.' }fn. Pautcle 6-10 in. ; branches and pedicels scabrid. SpiUleU 

 Her thau'tj jg'^* bairy. Callus of gl. Ill short, obtuse, setulose; nwn stout, 



■ '"^^'^ata, -Brot.Fl. Lmitan. i. 108; softly tomentose, panicle 



T 2 



h: . ■> ' 



