258 BOTANY OF SOOOTRA. 



Socotra. On Kadhab plain near Khor Hadjin. B.C.S. n. 264. 



Distrib. Beloocliistan, Scindh, and Persia. 



Boissier who founded this species upon specimens gathered by Stocks in 

 Beloocliistan and Scindh, and by Aucher Eloy in Persia, has more recently sunk 

 it as a variety of A. Griffithii, Moq. But this appears to me quite unnatural. 

 The bracts in fruit of A. Griffithii, are almost orbicular with very conspicuous 

 raised veins, and are nearly twice the size of those in A. Stocksii; and the 

 leaves are large and quite entire. The Scindh plant, which is the only one I 

 have seen, does vary somewhat in foliage, but the fruits are uniform in shape, 

 being more cordate or cordate-reniform. Our Socotran plant resembles most 

 nearly Stock's specimen from Scindh, n. 452, in Kew Herbarium. It is 

 noteworthy on account of the very crisped condition of the leaves and the 

 prominent much-fruited spikes. Possibly when we know more about them, 

 other apparent specific forms, as A. persicum, Boiss., may be joined with this 

 one, or this and the several allied forms may prove varieties of the better 

 known European and Mediterranean A. Halimus, Linn. (Sp. 1492). 



The plant is not common on the island. We only found it at one locality. 



SIT JED A. 



Suceda, Forsk. Fl. iEgypt. Arab. 69, t. 18, B ; Benth. et Hook. Gen. PI. iii. 66. 



A small genus of plants inhabiting the salt plains and shore districts of 

 both the old and new world. 



S. monoica, Forsk. Fl. iEgypt. Arab. 70; Moq. in DC. Prod. xiii. 2, 156; 

 Boiss. Flor. Orient, iv. 940. 



Socotra. Common at many places on the shores. B.C.S. nn. 356, 363, 

 618, 619. 



Distrib. North-east Africa to Arabia and India. 



Like most succulent maritime plants this species shows a tendency to 

 tumidity and the formation of tumours on stems and leaves. On Socotra this 

 tendency is very marked in several places. 



Order LXIIL POLYGONACEiE. 

 A large family found in every part of the globe. 



POLYGONUM. 



Polygonum, Linn. Gen. n. 495 ; Betith. et Hook. Gen. PI. iii. 97. 



A very large genus spread over the whole world and containing several 

 almost cosmopolitan weeds. Two well-known species are Socotran. 



1. P. (Persicaria) glabrum, Willd. Sp. ii. 447 ; Meisn. Monog. Polyg. 78, 

 and in DC. Prod. xiv. 114; Ach. Rich. Tent. Flor. Abyss, ii. 226; Wight Ic. t. 

 1799. 



