APPENDIX. 451 



J 3. Maurandella, Gray. Corolla with tlie prominent palate scarcely or not at all closing tlie 

 throat; fll.iments scarcely dilated upward; capsule nearly equal ; seeds nearly as in ^niin-Ainas- 

 trum. Herbs, usually climbing hy flexuous or teudril-lilce peduncles or petioles ; loaves mostly 

 alternate. 



* Annuals, climbing by the elongated peduncles only or erect, pilose at base, otherwise glabrous ; 

 leaves entire, with short straight petioles or none. 



12. A. STRiCTUM, Gray. Stem erect, 1-2° high; leaves lanceolate, lf-2i' long, the floral ones linear ; 

 peduncles 2' long, filiform, flexuous, scattered racemose ; corolla violet, |' long, the palate hairy ; capsule 

 ovoid-globose, crustaceous, tipped with the long rigid style, a little exceeding the broad-lanoeolate 

 calyx-segments ; seeds rugose-muricate. — S. California. 



13. A. FILIPBS, Gray. Slender, diffuse ; leaves lanceolate, or the lowest obovate, repand, attenuate 

 into the petiole ; peduncles capillary, very long, cirrhose-twisted ; flowers very small, "white;" capsule 

 globose. — Colorado Desert, (Newberry.) 



14. A. CooPKRi, Gray. Slender, very much branched, climbing, 3-4° high ; leaves linear or linear- 

 lanceolate, attenuate into a short petiole ; peduncles 2-3' long, capillary, coiled, the upper racemose 

 along the filiform naked branches ; corolla yellow, 6" long, the ample palate hairy, somewhat closing 

 the throat ; capsule globose ; seeds muriculate on the ventral side, and with 3-4 thick subcorky ridges 

 on the back. — Ft. Mohave, (Cooper.) 



* * Perennial, climbing by prehensile petioles and peduncles ; leaves cordate-hastate, angled. 



15. A. MAUEANDioiDES, Gray. Texas, Arizona, and Mexico. 



§ 4. GAMBELIA, Gray. Corolla tubular, slightly gibbous at base, the rather prominent palate not 

 closing the throat, lips short, the upper erect and bifid, the lower with three spreading lobes ; fila- 

 ments scarcely dilated above; capsule equal. Shrubs or uudershrubs of Southern California, 

 erect ; leaves opposite or ternate-verticillate, often subalternate, entire, the uppermost reduced ; 

 ■peduncles axillary, rather long. 



16. A. SPECIOSUM, Gray. Leaves oval or oblong, 1' long or less, short-petioled ; corolla nearly 1' 

 long, reddish or scarlet, the narrow tube thrice the length of the lips. — Catalina Island. 



17. A. JUNCBUM, Gray. Flowers and leaves smaller, the uppermost reduced to minute scales, 



PENTSTEMON. 



The following synopsis is condensed, with little change, from that of Dr. Gray in Proc. Amer. Acad., 

 Vol. VI, pp. 56-76, (1862.) Mexican species are omitted. 



Sect. I. EUPENTSTEMON, Gray. Anther-cells becoming divaricate or divergent, dehiscent to the 



base, (scarcely so in P. liacchanfoUus,) more or less united at the summits. § § 1-6. 

 § 1. ERIANTHEEA, Benth. Shj-ubby or suffrutioose, much branched; leaves thick-coriaceous, 



rather small ; inflorescence strictly racemose ; corolla violet or purple, slightly bilabiate, throat 



dilated; anthers densely woolly, the colls opening to the top and becoming peltate. — ^N. W. 



America. 



1. P. Menzibsii, Hook. Very variable; leaves obovate-oblong to long-lanceolate, serrate or entire; 

 calyx-lobes from ovate to narrowly lanceolate-acuminate ; sterUe filament strongly bearded or almost 

 naked. See page 216. 



5 2. EEUTICOSI, Gray. Shrubby or suffrutioose, tall, branched, branohlets often herbaceous ; leaves 

 coriaceous, rather small, subpetioled ; flowers numerous, panicled, bilabiate, the upper lip more 

 or less arched, the lower deflexed or spreading ; anthers glabrous, dehiscent to the top and expand- 

 ing. — Mostly Californian. 



* Corolla short, deeply bilabiate, ringent, yellowish, the lips equaling or a little exceeding the tube ; 

 leaves narrowed at base. 



2. P. MicROPHYLLUS, Gray. Puberulent; the fascicled leaves 2" long.— Arizona ; little known. 



3. P. ANTiRRHiNoroBS, Bcuth. Subciuercous, almost glabrous, much branched, leaves spatulate- 

 lanceolate or oblong, entire ; peduncles 2-leaved, usually l-flowered ; sepals round-ovate ; corolla yellow, 

 naked; lips ample ; sterile filament densely bearded. 



4. P. BREVIFLORUS, Bcnth. Glabrous ; leaves serrulate ; corolla bearded ; sterile filament glabrous. 

 See page 217. 



