4^ Gramineae Jss. 



nervo medio tantum valido, collaterales in superiorem 2-carinatam 

 connatae; perigonwm an certe 0? an potius e foliolis "binis lineari- 

 lanceolatis acuminatis consistens? — folia plana inaequilatera, sic- 

 cando tantum canaliculata, tandem sicca filiformi-convoluta. — Pi- 

 stillum plane Leptothril Knth. 1, c. Sppl. t. 38. 2. c ; — an genus 

 hocce jure a Zoijsia Wild. sejunctum cf. Knth. 1. c. 470, Sppl. 381. 

 817, Endl. Gen. 934. Msn. 1. c. — R.Brown (Prdr. I. (208.) 64) 

 genus hocce Rotthoelliaceis adjungit ob bracteam infimam abortivam 

 et inflorescentiam spicatam, quam autem majore jure racemum spi- 

 cae-formem diceres ; rectius forsan Agrostideis aut Festucaceis ad- 

 numerandum esset genus hocce, nisi Andropogoneis adnumerari possit. 



Char. Spec. cf. Knth. En. I. 471, Sppl. 381. 818, R. Br. Prdr. I. (208.) 

 64. Agrostis Matrella L. Rxb. Ind. I. 319. 3. 



Descrpt. Herba pumila perennis repens, florifera 

 4 — 6 poll. alta, ramosissima, intricato-caespitosa in gramino- 

 sis prope Weltevreden sat copiosa; caulis repens plerumque 

 subterraneus, teres, flavescens, ad nodos radices et ramos plu- 

 res densos divergentes gerens; rttmi adscendentes ima basi 

 ramosi, vaginis tecti 1,5 — 2,0 poll. longi, adscendenti-curvati 

 rigidi, summa apice sub spica nudi, teretes, glabri et in axilla 

 folii smnmi ramum floriferum alterum, spicam primariam haud 

 excedentem gerentes; vaginae plerumque 10 — 12 foliiferae, 

 quorum infimae 4 — 5 plerumque emarcidae, ferrugineae, nunc 

 in ramo fructifero plurimae emarcidae, tereti-compressae, vi- 

 rides, longitudinaliter nervoso - striatae , glabrae, lucidulae, 

 0,3 — 0,5 poll. longae, 0,03 poll. latae, margine tenuissime 

 membranaceae ; cellulae epidermidis lineares utrinque trunca- 

 tae, margine undulato-crispatae ; stomata minuta oblonga, du- 

 plicem suam longitudinem inter se remota, e cellulis binis 

 oblongis curvatis , rimam angustissimam linearem utrinque 

 attenuatam, orificium ductus intercellularis, cingentibus; ad 

 faucem et lingulae loco vaginae pilis albidis, tenuissimis, lae- 

 vibus, subulato-acutissimis, 1-cellulosis, nunc strictis, nunc ad 

 medium flexuosis, 0,08 poll. longis barbatae : /olia subdisticha, 

 bifariam disposita, patentia, lineari-lanceolata, acuminatissima 

 plana, siccando canaliculata, et dein sicca convoluta filiformia, 

 rigida, supra glauca, subtus viridia, infima minora, summa, 

 excepto florali, maxima 0,5 — 1,6 poU. longa, 0,1 poll. lata, 

 nervo medio sublaterali percursa, supra paullo prominulo, 



