314 Prof- Don's Descriptions of the Indian Species of Iris. 



hinc convexa, inde biangnlata, raphe palluliori elevatâ aucta, apice ap- 

 pendice obtusâ fungosà cai-uncnlata, basi liilo parvo instriicta : testa 

 coriacea, nigosa, brunnea, epidermide laxfi, pallidè fiiscâ: albumen co- 

 piosiun, cartilagineo-carnosuni, album. Embryo teres, medio pauliiliim 

 constrictus, clavatus, albus, extremitate radicular! (cauliculari) crassiori. 



This species departs from the rest of the genus in so many points, that it 

 may safely be ranked with those which, like Iris tuberosa and Sisyrinchium, 

 appear to constitute the types of so many distinct sections. The rhizoma is 

 exactly that of Hemerocallis, being furnished with thickened fusiform flesliy 

 fibres, and the leaves are likewise remarkable for the diversity of colour of 

 both surfaces, tlie inner one being of a biight green, and the outer one glau- 

 cous. The sepals are uniform, biiobed, and recurved, the outer three being 

 furnished along their centre with a peculiar membranous crest or fold. The 

 stigmas are remarkably broad and connivent. The seeds are furnished at 

 their apex with a thick, compressed, fungous appendage, resulting from an 

 unusual development of the testa at that point. 



This species has been introduced to our collections by Dr. Wallich, and is 

 renmrkable for the elegance of its habit and the beauty of its flowers. 



I have referred under this species Thunberg's Iris orientalis ; but an exami- 

 nation of authentic specimens is necessary to solve our doubts on this point. 



4. /. longifolia, imberbis ; foliis margine scabris, scapo brevissimo unifloro, 

 sepalis sublanccolatis integerrimis, tubo perianthii vix ullo, ovario elon- 

 gato triquetro scapum ada^quante, stigmatis lobis integerrimis. 

 Iris longifolia. Royle III. t. 91./. 2. 



Habitat in Cashmeria. Royle. Î/ . (v. s. c. in Herb. Royle.) 



Rhizoma repens, oblongum. Scapus uniflorus, gracilis, triangularis, foliis oni- 

 nino obvolutus, 2 — 3-pollicaris. Folia lineari-ensiformia, acuta, recurvato- 

 falcata, firmiora, coriacea, lœvia, viridia, margine prsesertim apicem ver- 

 sus tenuissimè serrulata, bipedalia, ferè scmunciam lata. Flos I. lialo- 

 phihe. Spathce subeeqxiales, foliacese, conduplicata?, ttorem siiperantes. 

 Sepala sublanceolata, integerrima, recurvato-patentia, intense cœrulea; 

 exteriora 3 duplo n)ajora, imberbia, infernè albicantia, purpureo-venosa : 

 tubus vix ullus. Stigmata (Styli rami) angustiora, biloba, recurvato- 



