PHANEROGAMS— PROFESSOR BAYLEY BALFOUR. 311 



7. P. nudiglume, Hochst. in herb. Schimp. Abyss, sect. iii. n. 1612 ; Ach. 

 Rich. Tent. Flor. Abyss, ii. 372. 



P. bispiculatum, Hochst. in herb. Schimp. Abyss, et Hohenack. n. 2143. 



Socotra. Wadi Digal and Kischen. Schweinf. nn. 509, 584. 

 Distrib. Abyssinia and Egypt. 



var. major, Hochst. in herb. 



Socotra. Near Galonsir. B.C.S. n. 47. 



Distrib. Abyssinia. 



This name is given by Hochstetter to a much more hairy form than the type ; 

 there are long hairs on the panicles. The glumes on the Socotran plant are 

 more glistening and smooth than in Abyssinian specimens. 



8. P. atrosanguineum, Hochst. in herb. Schimp. Abyss, sect. iii. n. 

 1709 ; Ach. Rich. Tent. Flor. Abyss, ii. 375. 



Socotra. On Haghier. B.C.S. n. 280. Schweinf. n. 697. 

 Distrib. Abyssinia. 



Ours is a dwarf specimen, very hairy, and Schweinfurth's is an almost 

 glabrous example, with somewhat longer spikelets than usual. 



9. P. rigidum, Balf. fil. in Proc. Roy. Soc. Edin. xii. (1882), 97. 



Csespitosum ramis decumbentibus radicantibus ad nodos villosis ; foliis brevibus rigidis ad apicem 

 vaginae villosis ; paniculis laxis ramis ramosis pleruruque glabris ; spiculis omnibus pedicel- 

 latis; glumaextima brevissima,glumisinterioribus 2 subsequalibus 5-nervatis glabris obtusis, 

 gluma ilorali levi obtusa. 



Ceespitosum radicibus numerosis Gbrosis culmisque plurimis a collo orieutibus radiantibus longe 

 patentibus decumbentibus ad nodos radicantibus subant'ractuosis rigidis glabris nodis 

 villosis exceptis glaucis. Folia inferiora in herbis majoribus lamina 2 poll, longa I poll, lata 

 ensiformi vagina longa striata in minoribus subsquamiformi brevi, superiora spiculiformia 

 angusta crassa rigida acutissima valde involuta et sicca subtereta glabra striata patentia 

 sub 1 poll, longa vaginaque non perfecte amplexicauli brevi sub lamina villosa. Paniculce 

 effusae erectae 1^-2 poll, longae 6-8-rainosae, rhachi primaria et secundariis glabris v. obscure 

 puberulis, ramis tenuibus subflexuosis ramosis infimis saepe 1\ poll, longis subdistantibus 

 ultimis 3-5-floris. Spicules ellipsoideae subglobosae minutae ^ P°U- longae omnes pedicel- 

 latse, pedicellis £- I poll, longis. Gluma extima minor late ovata apice deltoideo-acuta 

 concava subscaphoidea carinata uninervis membranacea medio nervo viridi spicula | 

 brevior ; gluma secunda tertiae florenti subaequalis et ea conformis elliptica concava obtusa 

 obscure apiculata membranacea nervis 5 rarissime 7 viridibus prominulis glabris ; palea 

 elliptica lata obtusa sed apice angustata levis. 



Socotra. Near Galonsir, Tamarida, and elsewhere. B.C.S. nn. 130, 561. 

 Schweinf. n. 346. 



Distrib. Endemic. 



A very Isachnoid species, but a true Panicum, unidentifiable with any 

 species hitherto described, and distinguished especially by its habit and stiff 

 foliage. On sandy spots it forms a close-set tufted plant, as in our n. 130, but 



