354 



These two species are very similar, but the former inay be distiDguished from 

 the latter by its larger, thicker, glabrous leaves and sessile fruit. 

 Antigonon flavescens Watson, Proc. Amer. Acad. xxii. 446 (1887). A very com- 

 mon climber found running o\ or bushes aud trees in various parts of the 

 mountains. Manzanillo, December 1 to 31, 1890. No. 980. 



ARISTOIiOCHIACE.ai. 



Aristolochia pardina Duch. Ann. Sci. Nat. ser. 4. ii. 47 (1854). A high-climb- 

 ing shrub; the woody base i inch in diameter, the bark corky; the herbaceous 

 branches glabrous or a little glaucous (except tho margins, petioles, and axils of 

 youug leaves, tSieso pubescent): leaves orbicular to broadly ovate with broad 

 cleft, open or closed sinus, 5-ncrved, somewhat reticulated, obtuse or rotuse- 

 flowers solitary, axillary, on slender peduncles 1^ to 3^ inches long: calyx "old 

 g(dd, spotted with brown," oval, 4 to 5 lines in diameter; tube 9 linos long, 

 obtuse or acutish; stamens fi; capsule many-seeded, oblong, 15 to 20 lines long: 

 seeds 3 lines long. Colima, January 9 to February 6, 1891. No. 1247. 



Very common in shade on hillside and river bottoms, climbing over bushes, 

 trees, and fences. 



The leaves are not as large as described by Duchartre. 



I have not seen specimens of this species, but it has been collected about 

 Colima by Ghicsbreght and Dugcs. The 8])ecies is only known from this local- 

 ity. Mr. Ilemsley thinks that this is the Giiaco mexicana Liebm. 



PIPERACE.S3. 



Piper palmeri C. DC. sp. nov. ; foliis modico petiolatis ovato-lanceolatis basi 

 ina-cpiali latere longioro rotundatis breviore 8ul)acutis a])ice acute acumiuatis 

 utrinijue et subtna densius velutiuo-]>ubescentibus baud scabris, nervo centrali 

 nervoa adscendontes altcrnos utrinfiue 5 mittente. petiolo dense pubescente, 

 basivagiuaute, peduneulo petiolum xquante dense retrorsumpubesceute, aniento 

 limbi dimidium superanto in sicco flavescente, rhachi inter baccas finibrio- 

 lata, bracteie pelta triangulari margine in sicco ilavida hirsutapediceiloangusto 

 hirsuto, bacca obpyraniidatotrigona vertice carnosa puberulatiue. la Colima 

 ubi Natico dictum, Jannarioilorens (Taliner n. 1227). Frntex6 ped. altusramulis 

 retrorsum piibescentibns amentiferis 2 mm. crassis in sicco virescentibus, ramis 

 glabris ligno duro. Limbi in sicco membranacei pallidi virescentes suhopaci 

 hand crebro p('llucido-i>unctulati, ad 15 cm. longi ad.5| cm, lati. I'etioli ad 1 

 cm.longi. Amenta apice obtusa, baccifera in sicco ad 4 mm. crassa. Stamina 

 4 antheris subglobosis i)arvi8 caducis. Hacca circiter 1 mm. loiiga. Stigmata 

 SBCBsilia brovia. 



Species Piper pseudo-fuUghici C. DC. (in Liuna^a) proxima, limbis hand snbobo- 

 vatis nervorum numero minoro amentisciue hand apice mucronulatis ab eo sat 

 discrepans. 



Var. manzanilloanum C. DC. var. nov. ; rannilis pubescentibus limbis tenuiori- 

 bus amentia in sicco haiud ant minus flavescentibus baccts<pie panlo minoribua 

 a specie vix diatinctum. Manzanillo, December 1 1o 31, 1890. No. 1045. 



Piper unguiculatum longifolium C. DC. var. nov. ; limbis ad lOi cm. longis baccis 

 densiua et longius hirtellis. 



In Colima, ubi commune. Palmer n. 1120. 



Piper iimbellatum L. Sp. PI. ed. 2. i. 43 (1762). Colima, .January 9 to February 

 6, 1891. No. 1226. 



Piper tuberculatum Jacq. Ic. Par. ii. 2, t. 211 (1786-'93). Colima, .January 9 to 

 February 6, 1891. No. 1213. 



piper realejoanum CDC. lanmea, xxxvii, 345 (1871-73), Manzanillo, March 2 to 

 18, 1891, Nos, 1374 aud 1332, 



