5. 


rigi Mr. Hanbury has just flowered a spineless form that agrees 
: ty well with the sisalana of Yucatan and Florida. I am quite 
satisfied now that A. Houlletii, Jacobi, is nothing more than unde- 
veloped sisalana, and the same holds good with a plant called levis. 
One panicle of this species at La Mortola was producing copious bulbille. 
- The peduncle, including the rhomboid panicle, does not reach a greater 
height than 12-15 feet. The bract-leaves, like those of americana, are 
small and distant as compared with those of atrovirens. 
A. Davilloni, Baker, n. sp. This is a new species, intermediate 
between rigida and polyacantha, which I saw for the first time in the 
. Jardin RUEoclliiatisation at Hyéres. It is acaulescent, with a rosette of 
about 30 rigid ensiform leaves, which reach a length of 3-4 feet and a 
breadth of 4 inches at the middle. They are moderately glaucous when 
mature, tinged with red when young, very concave on the face towards 
the tip, with a non-decurrent pungent point and close minute deltoid 
chestnut-brown marginal teeth. The peduncle was about 20 feet long, 
and the panicle 6 feet long and broad. T he bract-leaves and flowers are 
like. those of A. rigida. 
A. lurida, Miller. Seen only at Hyères, not differing materially from 
the plant of English conservatories. 
A. troubetskoy esu Hort. Hyères. A very fine plant, allied to A. 
lurida, whic h Isa under this name, in the Jardin Boa - at 
t 

with large pu ingent non-decurrent cok ducem and sma istan 
nearly rely deltoid marginal teeth. I was informed that it had been 
received from De Smet of Gand, aud named in honour of Prince 
.. Troubetskoy, who some sation ago had a very fine garden on the 
. 4. miradorensis, J acobi. A plant which I saw -— this name e 
Hyères, differs considerably from what. we have 
robably a variety of the same species. It has very pisia ian n 
rigid leaves, 2 feet long, 4-5 inches broad at the middle, a small pungent 
` black non-decurrent end-spine, and indistinct very small marginal teeth. 
A. polyacantha, Haworth. Seen both at La Mortola and Hyéres 
nder a great "y of forms and in different stages of growth. When 
fully developed it has an acaulescent rosette of about 40 lanceolate 
leaves of firm texture, measuring about 3 feet long by 4 inches broad 
at the middle, green, with a slight glaucous tinge, a small non-decur- 
rent’ pungent red-brown end-spine, and copious close minute red-brown 
deltoid marginal teeth. The peduncle is about 5 feet long, with many 
small scariose bract-leaves, which are linear from a broad base, ánd es 
dense spike is about as long as the peduncle. In a young state t 
brown horny border is quite continuous, so that it is quite probable that 
this mày be A. Keratto, Miller, received by him ae the island of St, 
— Kitts, “A curious form seen se ee has more ensiform leaves than 
in the type, curved forward in the plane of the face, like a sickle. “Plan ts 
which I saw labelled aek ee chiapensis, densa, and cubensis were 
. all Vg heit forms. 
ora, Hook. After seeing the wide range of polyacantha 
forms ast described, I cannot now separate densiflora as a species. 



Group STRIATA. 


striata, Zucc. Frequent in the Riviera, with a range of variation 
similar fo what we know already at home. Here belong the plants 




