MR, J. BALL’S SPICILEGIUM FLORH MAROCCANA. 287 
After three days passed at Tangier, during which we made an 
excursion to Cape Spartel, and thence along the Atlantic coast 
to the so-called Cave of Hercules, we started for Tetuan, which 
we reached early on the 12th of April. On the following day 
we ascended the highest of the picturesque mountains that enclose 
the verdant valley of Tetuan, called Beni Hosmar, the same which 
had been visited more than forty years before by the late Mr. 
Webb. Although the season was not yet sufficiently advanced, 
we collected nearly all the species found by our predecessor, with 
several others of much interest. After another day well spent on 
the rocky ground in the immediate neighbourhood of the city, we 
started on the 15th to ride along the coast to Ceuta, thereby 
adding some additional species to our rapidly growing collections. 
The botanical exploration of the coast between Ceuta and Tan- 
gier, on the seaward slopes of the Angera Mountains, would be of 
great interest ; and until this has been effected it will not be pos- 
sible to say whether Rhododendron ponticum, Helianthemum lasi- 
anthum, and several other remarkable species now known on the 
northern side of the Straits of Gibraltar are really absent from 
the southern shores. The country, however, is considered too 
unsafe, especially for travellers starting from Ceuta, and we tra- 
versed the Straits in the felucca, by which the garrison and popu- 
lation of Ceuta keep up communication with Algeciras. Two 
days’ unexpected detention on the Spanish side was not ill em- 
ployed in a survey of the spring vegetation of the hills above 
Algeciras and the rock of Gibraltar. Returning to Tangier 
we were detained two days more, which were employed in 
putting in order and further increasing our collections. Mr. 
Maw, who had returned direct from Tetuan to Tangier, made in 
the interval two fruitful excursions to some swampy brackish 
lakes about 14 miles 8.S.W. of the latter city. 
Having at length received the necessary letter from the Sultan 
to the Governor of Mogador, we left Tangier on the 20th of April 
in the French steamer‘ Vérité,’ bound for the Atlantic ports of 
Marocco and the Canary Islands. On the following day we lay 
off Rabat, but, owing to the heavy swell, were unable to land. On 
the following day, however, we landed at Casa Blanca, or Dar el 
Beida, a place not mentioned by any of the botanists who have 
visited the coast. Having made a tolerably large collection on 
the bare hills near Casa Blanca, and been hospitably received by 
Mr. Dupuis, the British vice-consul, we continued our voyage to 
