106 



TrlxiB obvallata H. & A. It grows about 2 feet high : the flowers are yellow,with 

 a strong pine odor. It is commonly called " YorLa del aira," and is used exten- 

 sively by the common people in preparing a medicine for colds. Alamos. March 

 26 to April 8. No. 290. The plant differs from the fignre in Beechey's Report in 

 having entire leaves, bnt it seema the same as Pringlo's No. 2431, referred here by 

 Mr. Watson. It is certainly very near T. longifoUa; Parry and Palmer's No. 1121, 

 referred here by Mr. Henisley, is the same as our plant. 



Lobelia laxiflora IT. B. K. Only a few plants found in a deep ravine in a portion of 

 the Mountain of Alamos. March 2G to April 8. No. 288. 



Heterotoma tenella ' Mart. & Gal. This little plant is very variable ; our speci- 

 men being either simple, 1 to 2 inches high, 1 to few flowered ; or taller, 10 to 12 

 inches high, and often branching. It grows in moist spots halfway up the moun- 

 tain side. Alamos. March 26 to April 8. No. 289. Here belong also Bourgeau's 

 No. 1722, distributed as Lobelia Cliffortiana, and also so referred by Hemsley in 

 Biol. Cent.-Amer. ii. 266. The Smithsonian Institute distribute under the same 

 name a plant from Orizaba, collected by Botteri (No. 1191), which is also this 

 species: this plant is tall, with long filiform branches. All of these specimens 

 differ from the original description in being pubernlent below. 



Metastelma latifolia, n. sp. High climbing shrub, nearly glabrous: leaves oblong 

 tolanceolate,roundishatbase, obtuse with abrupt appendiculation, an inch long, 

 shortly pedunculate, margin and midrib pubescent (especially above) : umbel 

 8hort-pedunch>d,3 to 7-tlowered: pedicels H lines long : flowers very small, less 

 than 1 line long: calyx lobes short, acute; corolla white, the oblong, obtuse 

 lobes densely pnberulent on their inner margins: column very short if any : lobes 

 of the crown about equal the stigma. — Climbing over the tops of bushes, it 

 forms a compact mass of sweet-scented flowers. Alamos. September IG to 30. 

 No. 665. According to the recent Revision of Dr. Gray (Proc. Amer. Acad, xxi.) 

 it comes in the sub-section containing M. Pringhi ; but the foliage is different. 



Buddleia verticillata II. B. K. A large bushy plant, early glabrate, 5 to 8 feet high, 

 with woody stems and rough bark: lower leaves ovate, 10 inches long and ser- 

 rate ; upper leaves lanceolate with cnneate base, entire: heads on peduncles 

 4 to 8 lines long : flowers yellowish with " honey-like odor." Common on good 

 soil everywhere abont Alamos. March 26 to April 8. No. 279. 



Erythrgea Madrensia Ilemsl. Biol. Cent.-Amer. ii. 346. Collected on the top of 

 Alamos Mountain. March 26 to April 8. No.405. Seeniann's plant is the only one 

 referred here, bnt it seems to me that Parry and Palmer's No. 567 (collected in 

 1878) should also be referred here. 



The variety (No. 2597) in Mr. I'ringle's collection is lower and more spreading, 

 and with more twisted anthers. 



Gilia Sonorae Rose. Contr. Nat. Herb. i. 90. This plant is reported as very 

 abundant on the sandy river bottoms. Alamos. March 26 to April 8. No. 396. 



LcBselia glandulosa Don. Common. Alamos, March 26 to April 8. No. 399. 



Cordia (Sebestenoides) Sonorse, n. sp. A small tree 10 to 20 feet high, 6 inches 

 ill diameter; younger parts pubernlent: leaves elliptical, 2 to 4 inches long, 

 obtuse, entire, a little scabrous above : racemes short and dense: calyx cylindri- 

 cal, 5 to 6 lines long : corolla white, 15 lines in diameter : stamens 5 to 7, 

 exserted. — A common tree in low places and on hillsides. About Alamos. Sep- 

 tember 16 to 30. No. 376. 



Called Palo-de Asta, and is one of the most beautiful of (lowering trees; the 

 whole tree is covered with large clusters of white flowers (becoming lavender by 

 age), a short distance away entirely hiding from view the large shining leaves. 

 The tree has a symmetrical top and is well worthy of cultivation. 



ExFLANATiOH OF PLATE IX, — A flowering branch and showing flowers and leaves ; natural 



'Another Bpocioa of this genns has been wrongly distributed, viz, Palmer's No. 43 (ISSfi), from 

 Jalisco, referred to Lobelia iubnuda Gray.Proc, Amer. Acad. xxii. 433, which ia M. arabidoides B. &, H. 



