Plate 2463, 



PTERYGIELLA NIGRESCENS, Oliv. 



SCROPHULARIXE-^. Tribe EuPURASlE^fi. 



Pterygiella, Oliv, [gen. noi\) Calyx ebracteolatus, campanulatus, 

 5-fidu3, lobis deltoideo-ovatis acutis, sestlvatione reduplicato-valvatia. 

 Corolla bilabiata, subpersonata, calycem superans ; labio postico concavo 

 V. subgaleatOj apice emarginato, maryiuibus revolutis ; labio antico 

 3-lobo, lobis rotundatis, subsequalibus, palato bifido tomentello ; tubo 

 Bubtus plicatim bisulcato. Stamina 4, inclusa, infra medium corollse 

 inserta ; filanienta inappendiculata, glabra ; antherae biloculares, laxe 

 moUiter piloste, loculis parallelis basi obscure mucronulatis. Ovarium^ 

 ovoideum, biloculare, loculis inrequalibus, ovula numerosissima ; stylus 

 longiusculus ; stigma oblique ina?qualiter bilobatum. Capsula (in 

 spec, unic.) nondum maturata.— Herba ereda, parum ramosa, caule 

 fasco-jmheruloy anguste quadrialato. Folia linearia, acutiuscida^ 

 Integra, patentia, plus minus puherula v. primum ruhiginoso^tomentella. 

 Flores in racemes terminales dispositi, hrevissime pediceUatiy hracteati ; 

 bractece lineares, calyce breviores. 



P. nigrescens, Oliv. (sp. unica). 



Hab. China : Mountain wastes, Mongtse, Yunnan, Hancock. 



Herba 1^-2-pedalis. Folia |-1 poll, longa, 1-1| lin. lata. Calyx 

 semipollicaris, lobis intus pubescentibus extus parce puberulus. ^ Corolla 

 9-10 lin. longa, limbo extus parce hirtello. Stamen posticum 0. 

 Ovarium, atque stylus pubescens. 



A very interesting addition to a group of Euphrasie(B already repre- 

 sented in Eastern Asia by a few peculiar endemic forms, to none of 

 which does our plant seem to me to be generically related. Mr. 

 Hancock describes the flowers as lurid brown. The whole plant, like 

 some of its allies, becomes dark in drying. In aestivation, so far as I 

 am able to make out, the lateral margins of the upper lip of the corolla 

 are narrowly overlapped by the lateral lobes of the lower lip, the 

 median lobe of which is interior. — D, Oliver. 



Fie. 1. Part of calyx and pistil. 2. Corolla laid open. 3. Views of anther. 

 4, Cross-section of ovary. AH enlarged. 



