TEE VEGETATION OF THE ZEMV 
ai8 
558. Primula iiivolucrata Wall. 
Zemu, Llonakh, 13-14,000 ft., Nos. 1609, 2079. 
559. Primula tibotica Watt. 
Llonakh, 14-15,000 ft., Nos. 1851, 2087. 
560. Primula Caveana W. W. Smith, sp. nuv. 
Species ad sectionem Callianiharum Pax, pertinens, Trimulm 
Jiazaricae et P. Jaffreyana affinis ; longis petiolis, pedicellis glandulosis, 
calvce farinoso fere ad imum fisso distincta. 
Minute pubescens. RhizOma permultis vetustis foliis persistentibus 
indutum. Folia viridia 4-8, obovata vel suborbicularia, obtusa, 
denticulata, membranacea, subtus albo-farinosa ; lamina ad 4 cm. longa, 
ad 1*5 cm. lata sensim attenuata in petiolum alatum 3-6 cm. longum 
basi late vaginantem. Scapus folia paullo tantum excedens, 5-8 cm^ 
altus, 2-4 flores Kerens. Bractem lineares 7-8 mm. glanduloso- 
pubescentesj pedicelli l-]‘5 cm. longi, graciles. Calyeis 5-8 mm. longi 
tubus anguste campanulatus, ultra medium fissus ; lobi lineari-lanceolati, 
acuti, pubescentes, dense farinosi. Corolla pallide purpurese tubus calycem 
2-3-plo superans, 1*5-1 *8 cm. diametiens ; lobi obcordati, integri vel 
breviter erosi. Capsula calyce inclusa, globosa. 
Among rocks and boulders in the upper Llonakh valley, Sikkim, 
15,000 ft.. Nos. 1810, 2111. Very near Rrimula Jaffreyana King, 
which however is glabrous, much less farinose and with calyx distinctly 
ribbed. The previous season^s leaves and fruits are remarka,bly persistent, 
probably protected by the snow which lasts for nearly nine months in 
this region. 
561. Primula obtusifolia Eoyle. 
Yumchho La, Zemu, 12-16,500 ft., Nos. 1236, 1345, 1554, 1555, 
1587. Frequent. 
562. Primula elougata Watt. 
Zemu, 14-15,000 ft.. Nos. 1430, 1519, 1531, 1532. 
563. Primula uivalis Pall, 
var. macropliylla. 
Upper valleys of Llonakh, 15-16,000 ft.. Nos. 2160, 2195, 2196, 
2338. 
var. macrocarpa. 
Thango, 14,000 ft.. No. 2494. 
564. Primula sikkimensis Hook. f. 
Zemu and Llonakh, 11-15,000 ft., Nos. 1094, 1289, 1389, 16U. 
Frequent. 
