1 III. PHANEROGAMS OF THE JUAN KERNANDEZ ISLANDS 153 



a very distinct species (fig. \.J i). To the same subsection Cercodia (Murr.) 

 Schindl. also belong //. laevis, exalata and pedicellata, all natives of Eastern 



Australia. 



Key to Subsect. Cercodia. 



I. Sepals tridentate ... //. pedicellata Schindl. 



II. Sepals entire. 



A. Whole plant more or less scabrid. 



1. Densely scabro-velutinous. Leaves thick, broadly ovate. 



H. cartilaginea Cheesem. 



2. Coarsely scabrid. Leaves thin. 



a. Stein with lar<;e, scattered hooks. Teeth of leaves pungent. 



//. exalata F. Mull. 



b. Stem with minute prickles, teeth of leaves not pungent. 



a. Leaves barely scabrous. Stigma papillae few celled. Fruit 

 more than 3 mm long H. erecta (Murr.) Schindl. 



(3. Leaves very scabrous. Papillae multicellular. Fruit hardly 

 3 mm long. H. asperrima Skottsb. 



B. Whole plant perfectly smooth. 



1. Leaves large, narrow lanceolate H. laevis Schindl. 



2. Leaves ovate or broad lanceolate. 



a. Fruit large, generally over 4 mm. 



a. Narrow ovoid, distincly costate. H. masatierrana Skottsb. 

 p. Broad ovoid, not costate. H. masafuerana Skottsb. 



b. Fruit small, c. 3 mm long. H. Colensoi Skottsb. 



:i: 83. H. asperrima now spec. — Syn. H. erecta var. scabra, SKOTTS- 

 BERG, Stud. — Fig. 18. 



SufFrutex semimetralis, glaber sed scaberrimus, fere a basi opposite ramo- 

 sus. Rami tetragoni longitudinaliter ac conspicue 4-lineati, lineis elevatis valde 

 scabris. Folia opposita, superiora saepe alternantia, internodiis sat longis sepa- 

 rata, tenuia, laete — obscure viridia subtus paulo pallidiora, ubique asperrima, 

 ovata vel ovato-lanceolata, basi cuneato-rotundata, longe (10 — 18 mm vel inter- 

 dum ultra) petiolata, lamina argute serrata dentibus distincte apiculatis utrinque 

 12 — 14, 30—50 mm longa et 10 — 22 mm lata, superiora sensim minora, pro 

 magnitudine longe petiolata, anguste lanceolata — ovato-rhomboidea, parcius 

 dentata — subintegra. Inflorescentia spicata foliosa, e dichasiis bracteolatis 3 — 7- 

 floris composita. Flores brevissime pedicellati ( x / '2 mm), omnino scabri. Ovarium 

 tetragono-ovoideum, interdum mox alatum, 1,2 — 1.5 mm longum et 1 mm latum. 

 Sepala 4 acute triangulata, minute denticulata, 0,8—09 mm longa. Petala 4 

 navicularia, carinata et in carina scabra, breviter unguiculata, 2 — 2,5 mm longa, 

 viridia — alborosea. Stamina 8 hlamentis tenuissimis c. 1,5 mm longis, antheris flavis 

 dorso ± rubescentibus, I — 1,5 mm longis. Styli 4, ad 0,8 mm longi, stigmata alba 

 vel rosea papillis longis multicellularibus. Fructusscaber, viridis— obscure violaceus 

 tetragono ovoideus pyriformis exalatus vel 4-alatus, cum sepalis persistentibus 

 2,7—3 mm longus et 2 mm latus, inter margines alarum autem ad 4 mm metiens. 



