^66 DECANDRIA. MONOGYNIA. 



381. ^LYONIAf. (Species of Andromeda. fViUd,) 

 Calix 5- toothed. Corolla subglobose, pubes- 

 cent. Capsule 5-celled, valves 5, septiferous in 

 the middle, having their margins closed by 5 

 other external narrow valve?. Seeds numerous, 

 subulate, longitudinally imbricated. 



Shrubs with deciduoire or sempervirent and alternate 

 leaves; flowers small, collected into interrupted naked 

 panicles or lateral and axillary fasciculi; peduncles ex- 

 serted, destitute of bractes. — (Corolla covered with more 

 or less of the pubescence of the leaves; anthers awnless, 

 filaments each with an oval dilation at the base; style cy- 

 lindric, stigma indistinct; capsule subglobose or 'ovoid, 

 pentangular; dissepiments indivisible; the 5 lobes of the 

 receptacular axis connate, situated at the summit of the 

 capsule; seeds slender, caudate.) 



Leaves sempervirent. 



SpxciES. 1. L. ferruginea. Obs. IJjider side of the 

 leaves and nearly all the rest of the plant, not excepting 

 the flowers, invested with brown umbilicate furfuraceous 

 scales; leaves obovate and flat, reticulated, but scarcely 

 revoiute on the margin; pedicells aggregated in 3s and 5s 

 about 3-4 of an inch long; flowers very small, globular- 

 ovate; capsule cylindric-ovoid, furnished with very con- 

 spicuous accessary valvulse, which are deciduous, about 

 half the breadth of the proper valves, and a little unci- 

 nate at the summit. — I have not been able to find these 

 singular valvul?e in any other of the Aiulromedas except the 

 species included in the genus here proposed. 



2. rigida. Ph. Differs from the preceding in being 

 arborescent, with the leav'es more oblong, convex and re- 

 volute on the margin, having the veins on the upper side, 

 in particular obsolete or hidden, and the flowers globose. 

 Michaux also adds that it flowers at a difterent time. 

 Leaves deciduous. 



3. pamculata. Pubescence pilose and minute, upper 

 surface of the older leaves partly smooth; leaves obovate- 

 lanceolate, nearly entire, somewhat acuminated at both 

 extremities, membranaceous; panicle terminal, nearly na- 

 ked, corolla globose, somewhat pubescent; anthers awn- 

 less. — Capsules, pentangular, roundish. 



t To commemorate the name of the late Mr. John Lyon, an 

 indefatigable collector of North American plants, wi;o fell vic- 

 tim to a dangerous epidemic amidst those savage and romantic 

 mountains which had so often been the theatre of his labours. 



