20 sturtevant's notes on edible plants 



A. penninervis Sieber. blackwood. mountain hickory. 



Australia. This species yields gum gonate, or gonatic, in Senegal.' 



A. Senegal Willd. gum Arabic tree. 



Old World tropics. The tree forms vast forests in Senegambia. It is called nebul 

 by the natives * and furnishes gum arabic. 



A. seyal Delile gum arabic tree, thirsty thorn, whistling-tree 



North Africa, Upper Egypt and Senegambia. It furnishes the best gum arabic' 

 It is called glute by the Arabs of the upper Nile and whistling tree by the natives of Sudan. 

 The holes left by the departure of a gall insect are rendered musical by the wind.* 



A. stenocarpa Hochst. ' gum arabic tree. 



Southern Nubia and Abyssinia. The gum of this tree is extensively collected in 

 the region between the Blue Nile and the upper Atbara. It is called taleh, talha or kakul} 



A. suaveolens Willd. 



Australia. The aromatic leaves are used in infusions as teas.* 



A. tortilis Hayne 



Arabia, Nubia and the desert of Libya and Dongola. It furnishes the best of gum 

 arabic' 



Acaena sanguisorbae Vahl. Rosaceae. new Zealand bur. 



Australia. The leaves are used as a tea by the natives of the Middle Island in New 

 Zealand, according to Lyall. It is the piri-piri of the natives.' 



Acanthorhiza aculeata H. Wendl. Palmae. 



Mexico. The pulp of the fruit is of a peculiar, delicate, spongy consistence and is 

 pure white and shining on the outside. The juice has a peculiar, penetrating, sweet flavor, 

 is abundant, and is obviously well suited for making palm-wine. The fruit is oblong, 

 about one inch in longest diameter. It is grown in Trinidad. 



Acanthosicyos horrida Welw. Cttcurbitaceae. naras. 



Tropics of Africa. The fruit grows on a bush from four to five feet high, without 

 leaves and with opposite thorns. It has a coriaceous rind, rough with prickles, is about 

 15-18 inches aroimd and inside resembles a melon as to seed and pulp. When ripe it has 

 a luscious sub-acid taste.'" The btxshes grow on little knolls of sand. It is described, 



' Baillon, H. Hist. Pis. 2:50. 1872. (A. adstringens) 

 Brandis, D. Forest Fl. 186. 1874. {A. verek) 

 MueUer, P. Sel. Pis. 12. 1891. 



Schweinfurth, G. Heart Afr. i:<)7,gS. 1874. (A. fistula) 



Fluckiger and Hanbury Pharm. 206. 1879. 



BaiUon, H. Hist. Pis. 2: 56. 1872. T 



'MueUer, F. Sel. Pis. 1. 1880. 



Black, A. A. Treas. Bot. 1:5. 1870. 



Prestoe, H. Trinidad Bot. Card. Rpt. 39. 1880. {Chamaerops stauracanlha) 

 " Alexander, J. E. Exped. Disc. A fr. 2:68. 1837. 



