• • • 



Wallichian 



CONTENTS. Xlll 



Page 



B. Enumeration of Herbaria. 



59 



British Museum — Wight's Herbarium — Griffith's collections . . 60 

 Griffith's published journals .....«•• 



62 



Jacquemont's collections and journals . . . . . . .63 



Boyle's Herbarium • • • • . . . • • .64 



Linnean Society's Herbaria — Strachey and Winterbottom's , . 65 



Dr. Arnott's Herbarium — Mr. Bentham's 66 



Dr. Lindley's — Colonel Munro's — Dr. Falconer's . . . .67 



The Hookerian Herbarium 



Its contents 



Our own collections . 





68 

 69 

 72 



V. Sketch of the Meteorology of India 74 



VI. Sketch of the Physical Features and Vegetation of the 



Provinces of India . . . 83 



A. Limits of the i Flora Indica? 



84 



Himalaya and Tibet, north boundary 



Afghanistan and west boundary . . . . . .85 



Eastern frontier 



86 



Comparison with area of Europe, etc. ...... 87 



B. Necessity of dhiding India into Provinces, and principles 



according to tohich it is proposed to be done. 



Difficulty of task 88 



Neglect of definition in giving habitats of Indian plants . . .89 

 Materials and mode of treating subject ...... 90 



C General Remarks on the Vegetation of India. 

 Indian Natural Orders and forms of vegetation . . . .91 



Total amount of species in India 91 



Diffusion of species and relative abundance . . . . .92 



Fewness of local species 93 



Comparison of Flora with African ....... 93 



a. Distribution as affected by Climate. 

 Tropical zone, humid and arid types . . . . . . " . 94 



Humid forests, and drier ditto . . . . . . . .95 



Tropical annuals, and extratropical distribution of ditto . . .96 



Annuals of north temperate zone, and warm temperate forms . . 97 

 Plants of excessive western climate ....••• 98 



Himalayan and Khasian temperate zone 99 



Alpine or Arctic zone . **** 



Rarity of Cryptogamice .....•••• 



b. Distribution as affected by Geographical Position. 



i oft 

 Relation to geological change 



1. Australian type 



104 



2. Malayan Archipelago type 



101 



