ODONTOGLOSSUM. 423 



0. Alexandrse. — See Odontoglossum cbispum. 



0. Andersonianum, Bchh. f. — This singularly beautiful and 

 very interesting plant is evidently a natural hybrid between 

 0. crisjmm and 0. fjloriosum. The pseudobulbs and leaves 

 resemble those of O. crispum, but the flowers, which are 

 strongly scented, are more distinctly suggestive of 0. gloriosum. 

 The ovate-oblong acute slightly crispy sepals and petals are 

 creamy white, with bright chestnut brown oblong spots, and 

 the oblong-pandurate apiculate lip, which is also creamy 

 white, is yellow at the base, with numerous small spots of 

 crimson, in front of which are a pair of blunt teeth, while the 

 anterior part sometimes bears a largish irregular patch of 

 confluent spots. It is named in compliment to Mr, Anderson, 

 of Meadow Bank. We have had it with fifty flowers, and a 

 fine appearance it made when shown at the Manchester 

 Royal Botanic Gardens. — New Grenada. 



YlG.— Orchid Album, i. t. 35 ; Floral Mag., 2 ser., t. 45. 



0. Andersonianuni lohatum, Rchb.f. — This variety has the 

 numerous flowers two and a half inches across, the sepals and 

 petals being both of a creamy white, with numerous small 

 elegant chestnut brown spots on their base ; and the lip, 

 which bears rather spreading narrow side lobes, is spotted 

 with the same brown colour towards the centre, and there are 

 two lines of chestnut brown extending for about half an inch 

 from the base of each of the petals. — New Grenada. 



0. angUStatum, Lindley, — A very distinct species, producing 

 pyriform ancipitous pseudobulbs, each with one broad lanceo- 

 late leaf from its apex, and about four accessory ones at its base. 

 The flowers come in erect panicles, which have short branches; 

 they have linear very much acuminated sepals, which are 

 greenish with a median line of brown, and broader much 

 crisped petals, which are yellow with shining transverse bars 

 of cinnamon brown, and a white lip, the anterior part of which 

 is oblong triangular wavy and toothletted, with brown streaks 

 and bars, and a crest of two serrate lamellae, one long acute 

 middle keel, and a tooth on each side of it. — Peru. 



'FiG.—Batem., Mon. Odont., t. 26. 



0. aspersum, Rchh. f. — This plant is supposed to be a 

 natural hybrid between 0. viaculatum and 0. Rossn. The 

 pseudobulbs are similar to those of 0. maculatum, but smaller, 

 as are the flowers. The sepals and petals are yellowish white, 



