702 PHANEROGAMIA. 



The habit and mode of growth, as well as the synonymy of the 

 remarkable Balsam-bog are fully elucidated by Dr. Hooker. The 

 fruit is well figured by Sir William Hooker. 



§ 4. PECTOPHYTUM. (Pectophytum, H. B. K. ; DC.) 

 9. AzORELLA DIAPENSIOIDES, Sp. Nov. 



A. dense ccespitosa, nana, glabra; foliis imbricatis confertissimis, lamina 

 patente oblonga integerrima petiolo dilatato basi amplexicauli breviore; 

 umbelta 3-1 -flora sessili inter folia summa; involucro scarioso 6-9- 

 fido; floribus brevissime pedicellatis ; fructibus dorso subcompressis. 



Hab. On the crest of the Andes of Peru, near Casa Cancha and 

 Alpamarca. (High Andes of Peru, M'Lean, in herb. Hooker.) 



A dwarf and depressed, densely tufted species, with somewhat the 

 mode of growth and foliage of Diapensia Lapponica, but on a smaller 

 scale, an inch or two in height, glabrous throughout, except a very few 

 long hairs at the base of the leaves. Leaves imbricated, dense; the 

 scale-like petiolar portion triangular-dilated, 3 to 5 lines long, ap- 

 pressed and sheathing at the base, narrowed upwards, then a little 

 dilated into an oblong and entire, spreading lamina, of a thick and 

 firm texture, lh or 2 lines long, sometimes becoming linear, obtuse, 

 somewhat mucronate. Umbel sessile in the crown of upper leaves, bv 

 which it is exceeded in length, both in flower and fruit. Involucre 

 scarious, Q-9-cleft, usually unequally so; the segments oblong, obtuse, 

 not ciliate. Floivers 3 to 7, on very short pedicels, apparently all 

 perfect. Limb of the calyx obsolete and truncate. Petals apparently 

 greenish-white, oblong, plane. Fruit barely a line and a half long, 

 globular, but moderately dorsally compressed, not utricular; the meri- 

 carps obscurely five-ribbed. 



In Dr. Pickering's notes, a species allied to this is mentioned, from 

 the same district, with the leaves entire, lanceolate and densely 

 tomentose above. Two other species, thought to be A. (Fragosa) 

 multifida, and A. (Fragosa) cladorhiza, are said to be common at 

 Banos, and from Casa Cancha to Culnai. But no corresponding speci- 

 mens are found in the collection. 





