Swertia cuneata, Wall. Arenaria Stracheyi, Edgew. Swertia Kingii, Hk. f. Swertia Younghusbandii, Burkill Swertia multicaulis, D. Don Nardostachys grandiflora, DC. Trigonotis rotundifolia, Benth. Eritrichium densiflorum, Duthie Microula sikkimensis, Hemsl. Onosma Waddellii, Duthie Onosma Hookeri, C. B. Cl. Verbascum Thapsus, L. Lancea tibetica, Hk. f. & T. Lagotis crassifolia, Prain Pedicularis trichoglossa, Hk. f. Pedicularis Elwesii, Hk. f. Pedicularis megalantha, Don, forma Pedicularis megalantha, Don, var. pauciflora, Prain Pedicularis Roylei, Maxim. Pedicularis siphonantha, Don Pedicularis cheilanthifolia, Schrank Pedicularis tubiflora, Fischer Pedicularis integrifolia, Hk. f. Pedicularis globifera, Hk. f. Incarvillea Younghusbandii, Sprague Escholtzia eriostachya, Benth. Nardostachys Iatamansi, DC. Dracocephalum breviflorum, Turrill, sp. nov. Dracocephalum tanguticum, Maxim. Dracocephalum heterophyllum, Benth. Dracocephalum speciosum, Benth. Veronica lanuginosa, Benth. Nepeta discolor, Benth. Nepeta Thomsoni, Benth. Atriplex rosea, L. Polygonum vaccinifolium, Wall. Polygonum viviparum, L. Polygonum tortuosum, Don Polygonum affine, Don Polygonum amphibium, L. Stellera chamaejasme, L. Euphorbia Stracheyi, Boiss. Orchis cylindrostachys, Kraenzl. Liparis sp. Goodyera fusca, Lindl. Dendrobium alpestre, Royle Pleione Hookeriana, S. Moore Orchis Chusna, Don Roscoea purpurea, Sm. Iris nepalensis, Don Iris goniocarpa, Baker Iris tenuifolia, Pallas Lloydia tibetica, Baker Lloydia sp. Fritillaria Hookeri, Baker Fritillaria near F. Stracheyi, Hk. f. Fritillaria cirrhosa, Don Allium, sp. Allium Wallichii, Kunth Allium Govenianum, Wall.? Allium cyaneum, Regel Larix Griffithii, Hk. f. Dryopteris Linneana, C. Chr. Dryopteris Filix-mas, var. serrato-dentata, C. Chr. Cryptogramma Brunoniana, Wall. Calophaca crassicaulis, Benth. Glaux maritima, L. Androsace sessiliflora, Turrill, sp. nov. Astragalus oreotrophes, W. W. Sm. Thamnolia vermicularis, Schaer. Stereocaulon alpinus, Laur. Thelochistes flavicans, Norm. NOTE.--The material of some of the numbers was insufficient for accurate determination; in a few cases the material necessary for comparison was on loan, and in the case of one or two genera, such as _Aster_, revision of the North Asian and Indian species will have to be undertaken before certain plants can be definitely named. The numbers in the list coming under these categories are named "---- sp." ROYAL BOTANIC GARDENS, KEW. _March 7, 1922._ INDEX