ME. 0. B. CLAEKE ON INDIAN SPECIES OF OTPEEUS. 95 



India Orientalis : Bengal (Masters, h. Kew) ; Madras Peninsula 

 {Wight n. 1810, h. Kew); Mangalore (Sohenacher n. 823, 

 h. Kew). 



Ins. Comorin (Bouton, hh. Kew, Mus. Brit.). 



Var. (3. lancinux ; spiculis majoribus, longis 2 cm., latis 2-3 mm., 

 12-28-floris ; glumis minus remotis, in lateribus plicato-striatis, 

 mucrone fere terminali ; nuce unsymmetrica, obliqua, in uno 

 latere concava, apice conspicue lanceolata. 



Exempla optima Gf-riffithii a G. squarroso bene diversa viden- 

 tur ; exempla autem intermedia in herbario Grriffithii ipsius alio- 

 rumque reperiri possunt. 



Peninsula Malayana: Mergui (Griffith nn. 18, 337, h. Kew 

 n. 6203). 



Sect. B. Compressi. 



Compressi, Kunth, Knum. ii. p. 23 (C. jeminico excl.) ; Boeck. 

 in Linncea, xxxv. p. 505, partim. 



Foliaceae, virides, nee cinnamomeo-brunnei (nisi C. rubicundus). 

 Umbella pauciradiata, specie simplex aut fere simplex (nisi G. 

 Griffithii); radii longi (nisi C. rubicundus). Spiculse fascicu- 

 late aut spicatse, compressse (nisi C. Griffithii). Glumse imbri- 

 cata3, saepius mucronatse. Ehachilla fere exalata. Stamina 3. 

 Nux late ellipsoidea aut subovoidea, majuscula, subsequaliter 

 acute triquetra. 



The group here called Compressi is natural, i. e. united by a 

 great number of characters, if we leave out G. Griffithii and G. 

 rubicundus. G. Griffithii is kept here because it is so like 

 C. radians that it has been united therewith specifically by 

 Boeckeler ; and though the structure of its spikelets (as well as its 

 inflorescence) is totally remote from that characterizing the group, 

 it has for the present to be arranged here as an anomalous species. 

 0. amabilis in its colour and capitate inflorescence might perhaps 

 be moved to the Sect. Arenarii, but the strongly mucronate 

 glumes do not suit. 



Kunth has only three species in his group Compressi, and ot 

 these G.jeminicus, as Boeckeler rightly arranges it, belongs to 

 the Corymbosi. Boeckeler, on the other hand, has 33 species ot 

 Compressi; many of these (of the non-Indian ones) I have not 

 taken up at all in this paper ; but omitting these, I remove many 

 of Boeckeler's Compressi, as follows : — 



